dlls/shell32/shlexec.c

   1 /*
   2  *                              Shell Library Functions
   3  *
   4  * Copyright 1998 Marcus Meissner
   5  * Copyright 2002 Eric Pouech
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #include "config.h"
  23 #include "wine/port.h"
  24
  25 #include <stdlib.h>
  26 #include <string.h>
  27 #include <stdarg.h>
  28 #include <stdio.h>
  29 #ifdef HAVE_UNISTD_H
  30 # include <unistd.h>
  31 #endif
  32 #include <ctype.h>
  33 #include <assert.h>
  34
  35 #define COBJMACROS
  36
  37 #include "windef.h"
  38 #include "winbase.h"
  39 #include "winerror.h"
  40 #include "winreg.h"
  41 #include "winuser.h"
  42 #include "shlwapi.h"
  43 #include "ddeml.h"
  44
  45 #include "wine/winbase16.h"
  46 #include "shell32_main.h"
  47 #include "pidl.h"
  48
  49 #include "wine/debug.h"
  50
  51 WINE_DEFAULT_DEBUG_CHANNEL(exec);
  52
  53 static const WCHAR wszOpen[] = {'o','p','e','n',0};
  54 static const WCHAR wszExe[] = {'.','e','x','e',0};
  55 static const WCHAR wszILPtr[] = {':','%','p',0};
  56 static const WCHAR wszShell[] = {'\\','s','h','e','l','l','\\',0};
  57 static const WCHAR wszFolder[] = {'F','o','l','d','e','r',0};
  58 static const WCHAR wszEmpty[] = {0};
  59
  60 #define SEE_MASK_CLASSALL (SEE_MASK_CLASSNAME | SEE_MASK_CLASSKEY)
  61
  62
  63 /***********************************************************************
  64  *      SHELL_ArgifyW [Internal]
  65  *
  66  * this function is supposed to expand the escape sequences found in the registry
  67  * some diving reported that the following were used:
  68  * + %1, %2...  seem to report to parameter of index N in ShellExecute pmts
  69  *      %1 file
  70  *      %2 printer
  71  *      %3 driver
  72  *      %4 port
  73  * %I address of a global item ID (explorer switch /idlist)
  74  * %L seems to be %1 as long filename followed by the 8+3 variation
  75  * %S ???
  76  * %* all following parameters (see batfile)
  77  *
  78  */
  79 static BOOL SHELL_ArgifyW(WCHAR* out, int len, const WCHAR* fmt, const WCHAR* lpFile, LPITEMIDLIST pidl, LPCWSTR args, DWORD* out_len)
  80 {
  81     WCHAR   xlpFile[1024];
  82     BOOL    done = FALSE;
  83     BOOL    found_p1 = FALSE;
  84     PWSTR   res = out;
  85     PCWSTR  cmd;
  86     DWORD   used = 0;
  87
  88     TRACE("%p, %d, %s, %s, %p, %p\n", out, len, debugstr_w(fmt),
  89           debugstr_w(lpFile), pidl, args);
  90
  91     while (*fmt)
  92     {
  93         if (*fmt == '%')
  94         {
  95             switch (*++fmt)
  96             {
  97             case '\0':
  98             case '%':
  99                 used++;
 100                 if (used < len)
 101                     *res++ = '%';
 102                 break;
 103
 104             case '2':
 105             case '3':
 106             case '4':
 107             case '5':
 108             case '6':
 109             case '7':
 110             case '8':
 111             case '9':
 112             case '0':
 113             case '*':
 114                 if (args)
 115                 {
 116                     if (*fmt == '*')
 117                     {
 118                         used++;
 119                         if (used < len)
 120                             *res++ = '"';
 121                         while(*args)
 122                         {
 123                             used++;
 124                             if (used < len)
 125                                 *res++ = *args++;
 126                             else
 127                                 args++;
 128                         }
 129                         used++;
 130                         if (used < len)
 131                             *res++ = '"';
 132                     }
 133                     else
 134                     {
 135                         while(*args && !isspace(*args))
 136                         {
 137                             used++;
 138                             if (used < len)
 139                                 *res++ = *args++;
 140                             else
 141                                 args++;
 142                         }
 143
 144                         while(isspace(*args))
 145                             ++args;
 146                     }
 147                     break;
 148                 }
 149                 /* else fall through */
 150             case '1':
 151                 if (!done || (*fmt == '1'))
 152                 {
 153                     /*FIXME Is the call to SearchPathW() really needed? We already have separated out the parameter string in args. */
 154                     if (SearchPathW(NULL, lpFile, wszExe, sizeof(xlpFile)/sizeof(WCHAR), xlpFile, NULL))
 155                         cmd = xlpFile;
 156                     else
 157                         cmd = lpFile;
 158
 159                     /* Add double quotation marks unless we already have them
 160                        (e.g.: "file://%1" %* for exefile) or unless the arg is already
 161                        enclosed in double quotation marks */
 162                     if ((res == out || *(fmt + 1) != '"') && *cmd != '"')
 163                     {
 164                         used++;
 165                         if (used < len)
 166                             *res++ = '"';
 167                         used += strlenW(cmd);
 168                         if (used < len)
 169                         {
 170                             strcpyW(res, cmd);
 171                             res += strlenW(cmd);
 172                         }
 173                         used++;
 174                         if (used < len)
 175                             *res++ = '"';
 176                     }
 177                     else
 178                     {
 179                         used += strlenW(cmd);
 180                         if (used < len)
 181                         {
 182                             strcpyW(res, cmd);
 183                             res += strlenW(cmd);
 184                         }
 185                     }
 186                 }
 187                 found_p1 = TRUE;
 188                 break;
 189
 190             /*
 191              * IE uses this a lot for activating things such as windows media
 192              * player. This is not verified to be fully correct but it appears
 193              * to work just fine.
 194              */
 195             case 'l':
 196             case 'L':
 197                 if (lpFile) {
 198                     used += strlenW(lpFile);
 199                     if (used < len)
 200                     {
 201                         strcpyW(res, lpFile);
 202                         res += strlenW(lpFile);
 203                     }
 204                 }
 205                 found_p1 = TRUE;
 206                 break;
 207
 208             case 'i':
 209             case 'I':
 210                 if (pidl) {
 211                     INT chars = 0;
 212                     /* %p should not exceed 8, maybe 16 when looking foward to 64bit.
 213                      * allowing a buffer of 100 should more than exceed all needs */
 214                     WCHAR buf[100];
 215                     LPVOID  pv;
 216                     HGLOBAL hmem = SHAllocShared(pidl, ILGetSize(pidl), 0);
 217                     pv = SHLockShared(hmem, 0);
 218                     chars = sprintfW(buf, wszILPtr, pv);
 219                     if (chars >= sizeof(buf)/sizeof(WCHAR))
 220                         ERR("pidl format buffer too small!");
 221                     used += chars;
 222                     if (used < len)
 223                     {
 224                         strcpyW(res,buf);
 225                         res += chars;
 226                     }
 227                     SHUnlockShared(pv);
 228                 }
 229                 found_p1 = TRUE;
 230                 break;
 231
 232             default:
 233                 /*
 234                  * Check if this is an env-variable here...
 235                  */
 236
 237                 /* Make sure that we have at least one more %.*/
 238                 if (strchrW(fmt, '%'))
 239                 {
 240                     WCHAR   tmpBuffer[1024];
 241                     PWSTR   tmpB = tmpBuffer;
 242                     WCHAR   tmpEnvBuff[MAX_PATH];
 243                     DWORD   envRet;
 244
 245                     while (*fmt != '%')
 246                         *tmpB++ = *fmt++;
 247                     *tmpB++ = 0;
 248
 249                     TRACE("Checking %s to be an env-var\n", debugstr_w(tmpBuffer));
 250
 251                     envRet = GetEnvironmentVariableW(tmpBuffer, tmpEnvBuff, MAX_PATH);
 252                     if (envRet == 0 || envRet > MAX_PATH)
 253                     {
 254                         used += strlenW(tmpBuffer);
 255                         if (used < len)
 256                         {
 257                             strcpyW( res, tmpBuffer );
 258                             res += strlenW(tmpBuffer);
 259                         }
 260                     }
 261                     else
 262                     {
 263                         used += strlenW(tmpEnvBuff);
 264                         if (used < len)
 265                         {
 266                             strcpyW( res, tmpEnvBuff );
 267                             res += strlenW(tmpEnvBuff);
 268                         }
 269                     }
 270                 }
 271                 done = TRUE;
 272                 break;
 273             }
 274             /* Don't skip past terminator (catch a single '%' at the end) */
 275             if (*fmt != '\0')
 276             {
 277                 fmt++;
 278             }
 279         }
 280         else
 281         {
 282             used ++;
 283             if (used < len)
 284                 *res++ = *fmt++;
 285             else
 286                 fmt++;
 287         }
 288     }
 289
 290     *res = '\0';
 291     TRACE("used %i of %i space\n",used,len);
 292     if (out_len)
 293         *out_len = used;
 294
 295     return found_p1;
 296 }
 297
 298 HRESULT SHELL_GetPathFromIDListForExecuteA(LPCITEMIDLIST pidl, LPSTR pszPath, UINT uOutSize)
 299 {
 300     STRRET strret;
 301     IShellFolder* desktop;
 302
 303     HRESULT hr = SHGetDesktopFolder(&desktop);
 304
 305     if (SUCCEEDED(hr)) {
 306         hr = IShellFolder_GetDisplayNameOf(desktop, pidl, SHGDN_FORPARSING, &strret);
 307
 308         if (SUCCEEDED(hr))
 309             StrRetToStrNA(pszPath, uOutSize, &strret, pidl);
 310
 311         IShellFolder_Release(desktop);
 312     }
 313
 314     return hr;
 315 }
 316
 317 HRESULT SHELL_GetPathFromIDListForExecuteW(LPCITEMIDLIST pidl, LPWSTR pszPath, UINT uOutSize)
 318 {
 319     STRRET strret;
 320     IShellFolder* desktop;
 321
 322     HRESULT hr = SHGetDesktopFolder(&desktop);
 323
 324     if (SUCCEEDED(hr)) {
 325         hr = IShellFolder_GetDisplayNameOf(desktop, pidl, SHGDN_FORPARSING, &strret);
 326
 327         if (SUCCEEDED(hr))
 328             StrRetToStrNW(pszPath, uOutSize, &strret, pidl);
 329
 330         IShellFolder_Release(desktop);
 331     }
 332
 333     return hr;
 334 }
 335
 336 /*************************************************************************
 337  *      SHELL_ExecuteW [Internal]
 338  *
 339  */
 340 static UINT_PTR SHELL_ExecuteW(const WCHAR *lpCmd, WCHAR *env, BOOL shWait,
 341                             LPSHELLEXECUTEINFOW psei, LPSHELLEXECUTEINFOW psei_out)
 342 {
 343     STARTUPINFOW  startup;
 344     PROCESS_INFORMATION info;
 345     UINT_PTR retval = 31;
 346     UINT gcdret = 0;
 347     WCHAR curdir[MAX_PATH];
 348
 349     TRACE("Execute %s from directory %s\n", debugstr_w(lpCmd), debugstr_w(psei->lpDirectory));
 350     /* ShellExecute specifies the command from psei->lpDirectory
 351      * if present. Not from the current dir as CreateProcess does */
 352     if( psei->lpDirectory && psei->lpDirectory[0] )
 353         if( ( gcdret = GetCurrentDirectoryW( MAX_PATH, curdir)))
 354             if( !SetCurrentDirectoryW( psei->lpDirectory))
 355                 ERR("cannot set directory %s\n", debugstr_w(psei->lpDirectory));
 356     ZeroMemory(&startup,sizeof(STARTUPINFOW));
 357     startup.cb = sizeof(STARTUPINFOW);
 358     startup.dwFlags = STARTF_USESHOWWINDOW;
 359     startup.wShowWindow = psei->nShow;
 360     if (CreateProcessW(NULL, (LPWSTR)lpCmd, NULL, NULL, FALSE, CREATE_UNICODE_ENVIRONMENT, env,
 361                        psei->lpDirectory && *psei->lpDirectory ? psei->lpDirectory : NULL,
 362                        &startup, &info))
 363     {
 364         /* Give 30 seconds to the app to come up, if desired. Probably only needed
 365            when starting app immediately before making a DDE connection. */
 366         if (shWait)
 367             if (WaitForInputIdle( info.hProcess, 30000 ) == WAIT_FAILED)
 368                 WARN("WaitForInputIdle failed: Error %d\n", GetLastError() );
 369         retval = 33;
 370         if (psei->fMask & SEE_MASK_NOCLOSEPROCESS)
 371             psei_out->hProcess = info.hProcess;
 372         else
 373             CloseHandle( info.hProcess );
 374         CloseHandle( info.hThread );
 375     }
 376     else if ((retval = GetLastError()) >= 32)
 377     {
 378         TRACE("CreateProcess returned error %d\n", retval);
 379         retval = ERROR_BAD_FORMAT;
 380     }
 381
 382     TRACE("returning %u\n", retval);
 383
 384     psei_out->hInstApp = (HINSTANCE)retval;
 385     if( gcdret )
 386         if( !SetCurrentDirectoryW( curdir))
 387             ERR("cannot return to directory %s\n", debugstr_w(curdir));
 388
 389     return retval;
 390 }
 391
 392
 393 /***********************************************************************
 394  *           SHELL_BuildEnvW    [Internal]
 395  *
 396  * Build the environment for the new process, adding the specified
 397  * path to the PATH variable. Returned pointer must be freed by caller.
 398  */
 399 static void *SHELL_BuildEnvW( const WCHAR *path )
 400 {
 401     static const WCHAR wPath[] = {'P','A','T','H','=',0};
 402     WCHAR *strings, *new_env;
 403     WCHAR *p, *p2;
 404     int total = strlenW(path) + 1;
 405     BOOL got_path = FALSE;
 406
 407     if (!(strings = GetEnvironmentStringsW())) return NULL;
 408     p = strings;
 409     while (*p)
 410     {
 411         int len = strlenW(p) + 1;
 412         if (!strncmpiW( p, wPath, 5 )) got_path = TRUE;
 413         total += len;
 414         p += len;
 415     }
 416     if (!got_path) total += 5;  /* we need to create PATH */
 417     total++;  /* terminating null */
 418
 419     if (!(new_env = HeapAlloc( GetProcessHeap(), 0, total * sizeof(WCHAR) )))
 420     {
 421         FreeEnvironmentStringsW( strings );
 422         return NULL;
 423     }
 424     p = strings;
 425     p2 = new_env;
 426     while (*p)
 427     {
 428         int len = strlenW(p) + 1;
 429         memcpy( p2, p, len * sizeof(WCHAR) );
 430         if (!strncmpiW( p, wPath, 5 ))
 431         {
 432             p2[len - 1] = ';';
 433             strcpyW( p2 + len, path );
 434             p2 += strlenW(path) + 1;
 435         }
 436         p += len;
 437         p2 += len;
 438     }
 439     if (!got_path)
 440     {
 441         strcpyW( p2, wPath );
 442         strcatW( p2, path );
 443         p2 += strlenW(p2) + 1;
 444     }
 445     *p2 = 0;
 446     FreeEnvironmentStringsW( strings );
 447     return new_env;
 448 }
 449
 450
 451 /***********************************************************************
 452  *           SHELL_TryAppPathW  [Internal]
 453  *
 454  * Helper function for SHELL_FindExecutable
 455  * @param lpResult - pointer to a buffer of size MAX_PATH
 456  * On entry: szName is a filename (probably without path separators).
 457  * On exit: if szName found in "App Path", place full path in lpResult, and return true
 458  */
 459 static BOOL SHELL_TryAppPathW( LPCWSTR szName, LPWSTR lpResult, WCHAR **env)
 460 {
 461     static const WCHAR wszKeyAppPaths[] = {'S','o','f','t','w','a','r','e','\\','M','i','c','r','o','s','o','f','t','\\','W','i','n','d','o','w','s',
 462         '\\','C','u','r','r','e','n','t','V','e','r','s','i','o','n','\\','A','p','p',' ','P','a','t','h','s','\\',0};
 463     static const WCHAR wPath[] = {'P','a','t','h',0};
 464     HKEY hkApp = 0;
 465     WCHAR buffer[1024];
 466     LONG len;
 467     LONG res;
 468     BOOL found = FALSE;
 469
 470     if (env) *env = NULL;
 471     strcpyW(buffer, wszKeyAppPaths);
 472     strcatW(buffer, szName);
 473     res = RegOpenKeyExW(HKEY_LOCAL_MACHINE, buffer, 0, KEY_READ, &hkApp);
 474     if (res) goto end;
 475
 476     len = MAX_PATH*sizeof(WCHAR);
 477     res = RegQueryValueW(hkApp, NULL, lpResult, &len);
 478     if (res) goto end;
 479     found = TRUE;
 480
 481     if (env)
 482     {
 483         DWORD count = sizeof(buffer);
 484         if (!RegQueryValueExW(hkApp, wPath, NULL, NULL, (LPBYTE)buffer, &count) && buffer[0])
 485             *env = SHELL_BuildEnvW( buffer );
 486     }
 487
 488 end:
 489     if (hkApp) RegCloseKey(hkApp);
 490     return found;
 491 }
 492
 493 static UINT SHELL_FindExecutableByOperation(LPCWSTR lpPath, LPCWSTR lpFile, LPCWSTR lpOperation, LPWSTR key, LPWSTR filetype, LPWSTR command, LONG commandlen)
 494 {
 495     static const WCHAR wCommand[] = {'\\','c','o','m','m','a','n','d',0};
 496     HKEY hkeyClass;
 497     WCHAR verb[MAX_PATH];
 498
 499     if (RegOpenKeyExW(HKEY_CLASSES_ROOT, filetype, 0, 0x02000000, &hkeyClass))
 500         return 31; /* default - 'No association was found' */
 501     if (!HCR_GetDefaultVerbW(hkeyClass, lpOperation, verb, sizeof(verb)))
 502         return 31; /* default - 'No association was found' */
 503     RegCloseKey(hkeyClass);
 504
 505     /* Looking for ...buffer\shell\<verb>\command */
 506     strcatW(filetype, wszShell);
 507     strcatW(filetype, verb);
 508     strcatW(filetype, wCommand);
 509
 510     if (RegQueryValueW(HKEY_CLASSES_ROOT, filetype, command,
 511                        &commandlen) == ERROR_SUCCESS)
 512     {
 513         commandlen /= sizeof(WCHAR);
 514         if (key) strcpyW(key, filetype);
 515 #if 0
 516         LPWSTR tmp;
 517         WCHAR param[256];
 518         LONG paramlen = sizeof(param);
 519         static const WCHAR wSpace[] = {' ',0};
 520
 521         /* FIXME: it seems all Windows version don't behave the same here.
 522          * the doc states that this ddeexec information can be found after
 523          * the exec names.
 524          * on Win98, it doesn't appear, but I think it does on Win2k
 525          */
 526         /* Get the parameters needed by the application
 527            from the associated ddeexec key */
 528         tmp = strstrW(filetype, wCommand);
 529         tmp[0] = '\0';
 530         strcatW(filetype, wDdeexec);
 531         if (RegQueryValueW(HKEY_CLASSES_ROOT, filetype, param,
 532                                      &paramlen) == ERROR_SUCCESS)
 533         {
 534             paramlen /= sizeof(WCHAR);
 535             strcatW(command, wSpace);
 536             strcatW(command, param);
 537             commandlen += paramlen;
 538         }
 539 #endif
 540
 541         command[commandlen] = '\0';
 542
 543         return 33; /* FIXME see SHELL_FindExecutable() */
 544     }
 545
 546     return 31;  /* default - 'No association was found' */
 547 }
 548
 549 /*************************************************************************
 550  *      SHELL_FindExecutable [Internal]
 551  *
 552  * Utility for code sharing between FindExecutable and ShellExecute
 553  * in:
 554  *      lpFile the name of a file
 555  *      lpOperation the operation on it (open)
 556  * out:
 557  *      lpResult a buffer, big enough :-(, to store the command to do the
 558  *              operation on the file
 559  *      key a buffer, big enough, to get the key name to do actually the
 560  *              command (it'll be used afterwards for more information
 561  *              on the operation)
 562  */
 563 UINT SHELL_FindExecutable(LPCWSTR lpPath, LPCWSTR lpFile, LPCWSTR lpOperation,
 564                                  LPWSTR lpResult, int resultLen, LPWSTR key, WCHAR **env, LPITEMIDLIST pidl, LPCWSTR args)
 565 {
 566     static const WCHAR wWindows[] = {'w','i','n','d','o','w','s',0};
 567     static const WCHAR wPrograms[] = {'p','r','o','g','r','a','m','s',0};
 568     static const WCHAR wExtensions[] = {'e','x','e',' ','p','i','f',' ','b','a','t',' ','c','m','d',' ','c','o','m',0};
 569     WCHAR *extension = NULL; /* pointer to file extension */
 570     WCHAR filetype[256];     /* registry name for this filetype */
 571     LONG  filetypelen = sizeof(filetype); /* length of above */
 572     WCHAR command[1024];     /* command from registry */
 573     WCHAR wBuffer[256];      /* Used to GetProfileString */
 574     UINT  retval = 31;       /* default - 'No association was found' */
 575     WCHAR *tok;              /* token pointer */
 576     WCHAR xlpFile[256];      /* result of SearchPath */
 577     DWORD attribs;           /* file attributes */
 578
 579     TRACE("%s\n", (lpFile != NULL) ? debugstr_w(lpFile) : "-");
 580
 581     xlpFile[0] = '\0';
 582     lpResult[0] = '\0'; /* Start off with an empty return string */
 583     if (key) *key = '\0';
 584
 585     /* trap NULL parameters on entry */
 586     if ((lpFile == NULL) || (lpResult == NULL))
 587     {
 588         WARN("(lpFile=%s,lpResult=%s): NULL parameter\n",
 589              debugstr_w(lpFile), debugstr_w(lpResult));
 590         return 2; /* File not found. Close enough, I guess. */
 591     }
 592
 593     if (SHELL_TryAppPathW( lpFile, lpResult, env ))
 594     {
 595         TRACE("found %s via App Paths\n", debugstr_w(lpResult));
 596         return 33;
 597     }
 598
 599     if (SearchPathW(lpPath, lpFile, wszExe, sizeof(xlpFile)/sizeof(WCHAR), xlpFile, NULL))
 600     {
 601         TRACE("SearchPathW returned non-zero\n");
 602         lpFile = xlpFile;
 603         /* Hey, isn't this value ignored?  Why make this call?  Shouldn't we return here?  --dank*/
 604     }
 605
 606     attribs = GetFileAttributesW(lpFile);
 607     if (attribs!=INVALID_FILE_ATTRIBUTES && (attribs&FILE_ATTRIBUTE_DIRECTORY))
 608     {
 609        strcpyW(filetype, wszFolder);
 610        filetypelen = 6;    /* strlen("Folder") */
 611     }
 612     else
 613     {
 614         /* First thing we need is the file's extension */
 615         extension = strrchrW(xlpFile, '.'); /* Assume last "." is the one; */
 616         /* File->Run in progman uses */
 617         /* .\FILE.EXE :( */
 618         TRACE("xlpFile=%s,extension=%s\n", debugstr_w(xlpFile), debugstr_w(extension));
 619
 620         if (extension == NULL || extension[1]==0)
 621         {
 622             WARN("Returning 31 - No association\n");
 623             return 31; /* no association */
 624         }
 625
 626         /* Three places to check: */
 627         /* 1. win.ini, [windows], programs (NB no leading '.') */
 628         /* 2. Registry, HKEY_CLASS_ROOT\<filetype>\shell\open\command */
 629         /* 3. win.ini, [extensions], extension (NB no leading '.' */
 630         /* All I know of the order is that registry is checked before */
 631         /* extensions; however, it'd make sense to check the programs */
 632         /* section first, so that's what happens here. */
 633
 634         /* See if it's a program - if GetProfileString fails, we skip this
 635          * section. Actually, if GetProfileString fails, we've probably
 636          * got a lot more to worry about than running a program... */
 637         if (GetProfileStringW(wWindows, wPrograms, wExtensions, wBuffer, sizeof(wBuffer)/sizeof(WCHAR)) > 0)
 638         {
 639             CharLowerW(wBuffer);
 640             tok = wBuffer;
 641             while (*tok)
 642             {
 643                 WCHAR *p = tok;
 644                 while (*p && *p != ' ' && *p != '\t') p++;
 645                 if (*p)
 646                 {
 647                     *p++ = 0;
 648                     while (*p == ' ' || *p == '\t') p++;
 649                 }
 650
 651                 if (strcmpiW(tok, &extension[1]) == 0) /* have to skip the leading "." */
 652                 {
 653                     strcpyW(lpResult, xlpFile);
 654                     /* Need to perhaps check that the file has a path
 655                      * attached */
 656                     TRACE("found %s\n", debugstr_w(lpResult));
 657                     return 33;
 658
 659                     /* Greater than 32 to indicate success FIXME According to the
 660                      * docs, I should be returning a handle for the
 661                      * executable. Does this mean I'm supposed to open the
 662                      * executable file or something? More RTFM, I guess... */
 663                 }
 664                 tok = p;
 665             }
 666         }
 667
 668         /* Check registry */
 669         if (RegQueryValueW(HKEY_CLASSES_ROOT, extension, filetype,
 670                            &filetypelen) == ERROR_SUCCESS)
 671         {
 672             filetypelen /= sizeof(WCHAR);
 673             filetype[filetypelen] = '\0';
 674             TRACE("File type: %s\n", debugstr_w(filetype));
 675         }
 676         else
 677         {
 678             *filetype = '\0';
 679             filetypelen = 0;
 680         }
 681     }
 682
 683     if (*filetype)
 684     {
 685         /* pass the operation string to SHELL_FindExecutableByOperation() */
 686         filetype[filetypelen] = '\0';
 687         retval = SHELL_FindExecutableByOperation(lpPath, lpFile, lpOperation, key, filetype, command, sizeof(command));
 688
 689         if (retval > 32)
 690         {
 691             DWORD finishedLen;
 692             SHELL_ArgifyW(lpResult, resultLen, command, xlpFile, pidl, args, &finishedLen);
 693             if (finishedLen > resultLen)
 694                 ERR("Argify buffer not large enough.. truncated\n");
 695
 696             /* Remove double quotation marks and command line arguments */
 697             if (*lpResult == '"')
 698             {
 699                 WCHAR *p = lpResult;
 700                 while (*(p + 1) != '"')
 701                 {
 702                     *p = *(p + 1);
 703                     p++;
 704                 }
 705                 *p = '\0';
 706             }
 707         }
 708     }
 709     else /* Check win.ini */
 710     {
 711         static const WCHAR wExtensions[] = {'e','x','t','e','n','s','i','o','n','s',0};
 712
 713         /* Toss the leading dot */
 714         extension++;
 715         if (GetProfileStringW(wExtensions, extension, wszEmpty, command, sizeof(command)/sizeof(WCHAR)) > 0)
 716         {
 717             if (strlenW(command) != 0)
 718             {
 719                 strcpyW(lpResult, command);
 720                 tok = strchrW(lpResult, '^'); /* should be ^.extension? */
 721                 if (tok != NULL)
 722                 {
 723                     tok[0] = '\0';
 724                     strcatW(lpResult, xlpFile); /* what if no dir in xlpFile? */
 725                     tok = strchrW(command, '^'); /* see above */
 726                     if ((tok != NULL) && (strlenW(tok)>5))
 727                     {
 728                         strcatW(lpResult, &tok[5]);
 729                     }
 730                 }
 731                 retval = 33; /* FIXME - see above */
 732             }
 733         }
 734     }
 735
 736     TRACE("returning %s\n", debugstr_w(lpResult));
 737     return retval;
 738 }
 739
 740 /******************************************************************
 741  *              dde_cb
 742  *
 743  * callback for the DDE connection. not really useful
 744  */
 745 static HDDEDATA CALLBACK dde_cb(UINT uType, UINT uFmt, HCONV hConv,
 746                                 HSZ hsz1, HSZ hsz2, HDDEDATA hData,
 747                                 ULONG_PTR dwData1, ULONG_PTR dwData2)
 748 {
 749     TRACE("dde_cb: %04x, %04x, %p, %p, %p, %p, %08lx, %08lx\n",
 750            uType, uFmt, hConv, hsz1, hsz2, hData, dwData1, dwData2);
 751     return NULL;
 752 }
 753
 754 /******************************************************************
 755  *              dde_connect
 756  *
 757  * ShellExecute helper. Used to do an operation with a DDE connection
 758  *
 759  * Handles both the direct connection (try #1), and if it fails,
 760  * launching an application and trying (#2) to connect to it
 761  *
 762  */
 763 static unsigned dde_connect(WCHAR* key, const WCHAR* start, WCHAR* ddeexec,
 764                             const WCHAR* lpFile, WCHAR *env,
 765                             LPCWSTR szCommandline, LPITEMIDLIST pidl, SHELL_ExecuteW32 execfunc,
 766                             LPSHELLEXECUTEINFOW psei, LPSHELLEXECUTEINFOW psei_out)
 767 {
 768     static const WCHAR wApplication[] = {'\\','a','p','p','l','i','c','a','t','i','o','n',0};
 769     static const WCHAR wTopic[] = {'\\','t','o','p','i','c',0};
 770     WCHAR *     endkey = key + strlenW(key);
 771     WCHAR       app[256], topic[256], ifexec[256], res[256];
 772     LONG        applen, topiclen, ifexeclen;
 773     WCHAR *     exec;
 774     DWORD       ddeInst = 0;
 775     DWORD       tid;
 776     DWORD       resultLen;
 777     HSZ         hszApp, hszTopic;
 778     HCONV       hConv;
 779     HDDEDATA    hDdeData;
 780     unsigned    ret = 31;
 781     BOOL unicode = !(GetVersion() & 0x80000000);
 782
 783     strcpyW(endkey, wApplication);
 784     applen = sizeof(app);
 785     if (RegQueryValueW(HKEY_CLASSES_ROOT, key, app, &applen) != ERROR_SUCCESS)
 786     {
 787         FIXME("default app name NIY %s\n", debugstr_w(key));
 788         return 2;
 789     }
 790
 791     strcpyW(endkey, wTopic);
 792     topiclen = sizeof(topic);
 793     if (RegQueryValueW(HKEY_CLASSES_ROOT, key, topic, &topiclen) != ERROR_SUCCESS)
 794     {
 795         static const WCHAR wSystem[] = {'S','y','s','t','e','m',0};
 796         strcpyW(topic, wSystem);
 797     }
 798
 799     if (unicode)
 800     {
 801         if (DdeInitializeW(&ddeInst, dde_cb, APPCMD_CLIENTONLY, 0L) != DMLERR_NO_ERROR)
 802             return 2;
 803     }
 804     else
 805     {
 806         if (DdeInitializeA(&ddeInst, dde_cb, APPCMD_CLIENTONLY, 0L) != DMLERR_NO_ERROR)
 807             return 2;
 808     }
 809
 810     hszApp = DdeCreateStringHandleW(ddeInst, app, CP_WINUNICODE);
 811     hszTopic = DdeCreateStringHandleW(ddeInst, topic, CP_WINUNICODE);
 812
 813     hConv = DdeConnect(ddeInst, hszApp, hszTopic, NULL);
 814     exec = ddeexec;
 815     if (!hConv)
 816     {
 817         static const WCHAR wIfexec[] = {'\\','i','f','e','x','e','c',0};
 818         TRACE("Launching '%s'\n", debugstr_w(start));
 819         ret = execfunc(start, env, TRUE, psei, psei_out);
 820         if (ret < 32)
 821         {
 822             TRACE("Couldn't launch\n");
 823             goto error;
 824         }
 825         hConv = DdeConnect(ddeInst, hszApp, hszTopic, NULL);
 826         if (!hConv)
 827         {
 828             TRACE("Couldn't connect. ret=%d\n", ret);
 829             DdeUninitialize(ddeInst);
 830             SetLastError(ERROR_DDE_FAIL);
 831             return 30; /* whatever */
 832         }
 833         strcpyW(endkey, wIfexec);
 834         ifexeclen = sizeof(ifexec);
 835         if (RegQueryValueW(HKEY_CLASSES_ROOT, key, ifexec, &ifexeclen) == ERROR_SUCCESS)
 836         {
 837             exec = ifexec;
 838         }
 839     }
 840
 841     SHELL_ArgifyW(res, sizeof(res)/sizeof(WCHAR), exec, lpFile, pidl, szCommandline, &resultLen);
 842     if (resultLen > sizeof(res)/sizeof(WCHAR))
 843         ERR("Argify buffer not large enough, truncated\n");
 844     TRACE("%s %s => %s\n", debugstr_w(exec), debugstr_w(lpFile), debugstr_w(res));
 845
 846     /* It's documented in the KB 330337 that IE has a bug and returns
 847      * error DMLERR_NOTPROCESSED on XTYP_EXECUTE request.
 848      */
 849     if (unicode)
 850         hDdeData = DdeClientTransaction((LPBYTE)res, (strlenW(res) + 1) * sizeof(WCHAR), hConv, 0L, 0,
 851                                          XTYP_EXECUTE, 30000, &tid);
 852     else
 853     {
 854         DWORD lenA = WideCharToMultiByte(CP_ACP, 0, res, -1, NULL, 0, NULL, NULL);
 855         char *resA = HeapAlloc(GetProcessHeap(), 0, lenA);
 856         WideCharToMultiByte(CP_ACP, 0, res, -1, resA, lenA, NULL, NULL);
 857         hDdeData = DdeClientTransaction( (LPBYTE)resA, lenA, hConv, 0L, 0,
 858                                          XTYP_EXECUTE, 10000, &tid );
 859         HeapFree(GetProcessHeap(), 0, resA);
 860     }
 861     if (hDdeData)
 862         DdeFreeDataHandle(hDdeData);
 863     else
 864         WARN("DdeClientTransaction failed with error %04x\n", DdeGetLastError(ddeInst));
 865     ret = 33;
 866
 867     DdeDisconnect(hConv);
 868
 869  error:
 870     DdeUninitialize(ddeInst);
 871
 872     return ret;
 873 }
 874
 875 /*************************************************************************
 876  *      execute_from_key [Internal]
 877  */
 878 static UINT_PTR execute_from_key(LPWSTR key, LPCWSTR lpFile, WCHAR *env, LPCWSTR szCommandline,
 879                              LPCWSTR executable_name,
 880                              SHELL_ExecuteW32 execfunc,
 881                              LPSHELLEXECUTEINFOW psei, LPSHELLEXECUTEINFOW psei_out)
 882 {
 883     WCHAR cmd[256];
 884     LONG cmdlen = sizeof(cmd);
 885     UINT_PTR retval = 31;
 886
 887     TRACE("%s %s %s %s %s\n", debugstr_w(key), debugstr_w(lpFile), debugstr_w(env),
 888            debugstr_w(szCommandline), debugstr_w(executable_name));
 889
 890     cmd[0] = '\0';
 891
 892     /* Get the application from the registry */
 893     if (RegQueryValueW(HKEY_CLASSES_ROOT, key, cmd, &cmdlen) == ERROR_SUCCESS)
 894     {
 895         WCHAR param[1024];
 896         DWORD resultLen;
 897
 898         TRACE("got cmd: %s\n", debugstr_w(cmd));
 899
 900         param[0] = '\0';
 901
 902         /* Is there a replace() function anywhere? */
 903         cmdlen /= sizeof(WCHAR);
 904         cmd[cmdlen] = '\0';
 905         if (!SHELL_ArgifyW(param, sizeof(param)/sizeof(WCHAR), cmd, lpFile, psei->lpIDList, szCommandline, &resultLen))
 906         {
 907             /* looks like there is no %1 param in the cmd, add one */
 908             static const WCHAR oneW[] = { ' ','\"','%','1','\"',0 };
 909             strcatW(cmd, oneW);
 910             SHELL_ArgifyW(param, sizeof(param)/sizeof(WCHAR), cmd, lpFile, psei->lpIDList, szCommandline, &resultLen);
 911         }
 912         if (resultLen > sizeof(param)/sizeof(WCHAR))
 913             ERR("Argify buffer not large enough, truncating\n");
 914
 915         TRACE("executing: %s\n", debugstr_w(param));
 916         retval = execfunc(param, env, FALSE, psei, psei_out);
 917     }
 918     else
 919     {
 920         static const WCHAR wCommand[] = {'c','o','m','m','a','n','d',0};
 921         static const WCHAR wDdeexec[] = {'d','d','e','e','x','e','c',0};
 922         LPWSTR tmp;
 923         WCHAR param[256];
 924         LONG paramlen = sizeof(param);
 925
 926         param[0] = '\0';
 927
 928         /* Get the parameters needed by the application
 929            from the associated ddeexec key */
 930         tmp = strstrW(key, wCommand);
 931         assert(tmp);
 932         strcpyW(tmp, wDdeexec);
 933
 934         TRACE("trying ddeexec cmd: %s\n", debugstr_w(key));
 935
 936         if (RegQueryValueW(HKEY_CLASSES_ROOT, key, param, &paramlen) == ERROR_SUCCESS)
 937         {
 938             TRACE("Got ddeexec %s => %s\n", debugstr_w(key), debugstr_w(param));
 939             retval = dde_connect(key, executable_name, param, lpFile, env, szCommandline, psei->lpIDList, execfunc, psei, psei_out);
 940         }
 941         else
 942             WARN("Nothing appropriate found for %s\n", debugstr_w(key));
 943     }
 944
 945     return retval;
 946 }
 947
 948 /*************************************************************************
 949  * FindExecutableA                      [SHELL32.@]
 950  */
 951 HINSTANCE WINAPI FindExecutableA(LPCSTR lpFile, LPCSTR lpDirectory, LPSTR lpResult)
 952 {
 953     HINSTANCE retval;
 954     WCHAR *wFile = NULL, *wDirectory = NULL;
 955     WCHAR wResult[MAX_PATH];
 956
 957     if (lpFile) __SHCloneStrAtoW(&wFile, lpFile);
 958     if (lpDirectory) __SHCloneStrAtoW(&wDirectory, lpDirectory);
 959
 960     retval = FindExecutableW(wFile, wDirectory, wResult);
 961     WideCharToMultiByte(CP_ACP, 0, wResult, -1, lpResult, MAX_PATH, NULL, NULL);
 962     SHFree( wFile );
 963     SHFree( wDirectory );
 964
 965     TRACE("returning %s\n", lpResult);
 966     return retval;
 967 }
 968
 969 /*************************************************************************
 970  * FindExecutableW                      [SHELL32.@]
 971  */
 972 HINSTANCE WINAPI FindExecutableW(LPCWSTR lpFile, LPCWSTR lpDirectory, LPWSTR lpResult)
 973 {
 974     UINT_PTR retval = 31;    /* default - 'No association was found' */
 975     WCHAR old_dir[1024];
 976
 977     TRACE("File %s, Dir %s\n",
 978           (lpFile != NULL ? debugstr_w(lpFile) : "-"), (lpDirectory != NULL ? debugstr_w(lpDirectory) : "-"));
 979
 980     lpResult[0] = '\0'; /* Start off with an empty return string */
 981
 982     /* trap NULL parameters on entry */
 983     if ((lpFile == NULL) || (lpResult == NULL))
 984     {
 985         /* FIXME - should throw a warning, perhaps! */
 986         return (HINSTANCE)2; /* File not found. Close enough, I guess. */
 987     }
 988
 989     if (lpDirectory)
 990     {
 991         GetCurrentDirectoryW(sizeof(old_dir)/sizeof(WCHAR), old_dir);
 992         SetCurrentDirectoryW(lpDirectory);
 993     }
 994
 995     retval = SHELL_FindExecutable(lpDirectory, lpFile, wszOpen, lpResult, MAX_PATH, NULL, NULL, NULL, NULL);
 996
 997     TRACE("returning %s\n", debugstr_w(lpResult));
 998     if (lpDirectory)
 999         SetCurrentDirectoryW(old_dir);
1000     return (HINSTANCE)retval;
1001 }
1002
1003 /* FIXME: is this already implemented somewhere else? */
1004 static HKEY ShellExecute_GetClassKey( LPSHELLEXECUTEINFOW sei )
1005 {
1006     LPCWSTR ext = NULL, lpClass = NULL;
1007     LPWSTR cls = NULL;
1008     DWORD type = 0, sz = 0;
1009     HKEY hkey = 0;
1010     LONG r;
1011
1012     if (sei->fMask & SEE_MASK_CLASSALL)
1013         return sei->hkeyClass;
1014
1015     if (sei->fMask & SEE_MASK_CLASSNAME)
1016         lpClass = sei->lpClass;
1017     else
1018     {
1019         ext = PathFindExtensionW( sei->lpFile );
1020         TRACE("ext = %s\n", debugstr_w( ext ) );
1021         if (!ext)
1022             return hkey;
1023
1024         r = RegOpenKeyW( HKEY_CLASSES_ROOT, ext, &hkey );
1025         if (r != ERROR_SUCCESS )
1026             return hkey;
1027
1028         r = RegQueryValueExW( hkey, NULL, 0, &type, NULL, &sz );
1029         if ( r == ERROR_SUCCESS && type == REG_SZ )
1030         {
1031             sz += sizeof (WCHAR);
1032             cls = HeapAlloc( GetProcessHeap(), 0, sz );
1033             cls[0] = 0;
1034             RegQueryValueExW( hkey, NULL, 0, &type, (LPBYTE) cls, &sz );
1035         }
1036
1037         RegCloseKey( hkey );
1038         lpClass = cls;
1039     }
1040
1041     TRACE("class = %s\n", debugstr_w(lpClass) );
1042
1043     hkey = 0;
1044     if ( lpClass )
1045         RegOpenKeyW( HKEY_CLASSES_ROOT, lpClass, &hkey );
1046
1047     HeapFree( GetProcessHeap(), 0, cls );
1048
1049     return hkey;
1050 }
1051
1052 static IDataObject *shellex_get_dataobj( LPSHELLEXECUTEINFOW sei )
1053 {
1054     LPCITEMIDLIST pidllast = NULL;
1055     IDataObject *dataobj = NULL;
1056     IShellFolder *shf = NULL;
1057     LPITEMIDLIST pidl = NULL;
1058     HRESULT r;
1059
1060     if (sei->fMask & SEE_MASK_CLASSALL)
1061         pidl = sei->lpIDList;
1062     else
1063     {
1064         WCHAR fullpath[MAX_PATH];
1065
1066         fullpath[0] = 0;
1067         r = GetFullPathNameW( sei->lpFile, MAX_PATH, fullpath, NULL );
1068         if (!r)
1069             goto end;
1070
1071         pidl = ILCreateFromPathW( fullpath );
1072     }
1073
1074     r = SHBindToParent( pidl, &IID_IShellFolder, (LPVOID*)&shf, &pidllast );
1075     if ( FAILED( r ) )
1076         goto end;
1077
1078     IShellFolder_GetUIObjectOf( shf, NULL, 1, &pidllast,
1079                                 &IID_IDataObject, NULL, (LPVOID*) &dataobj );
1080
1081 end:
1082     if ( pidl != sei->lpIDList )
1083         ILFree( pidl );
1084     if ( shf )
1085         IShellFolder_Release( shf );
1086     return dataobj;
1087 }
1088
1089 static HRESULT shellex_run_context_menu_default( IShellExtInit *obj,
1090                                                  LPSHELLEXECUTEINFOW sei )
1091 {
1092     IContextMenu *cm = NULL;
1093     CMINVOKECOMMANDINFOEX ici;
1094     MENUITEMINFOW info;
1095     WCHAR string[0x80];
1096     INT i, n, def = -1;
1097     HMENU hmenu = 0;
1098     HRESULT r;
1099
1100     TRACE("%p %p\n", obj, sei );
1101
1102     r = IShellExtInit_QueryInterface( obj, &IID_IContextMenu, (LPVOID*) &cm );
1103     if ( FAILED( r ) )
1104         return r;
1105
1106     hmenu = CreateMenu();
1107     if ( !hmenu )
1108         goto end;
1109
1110     /* the number of the last menu added is returned in r */
1111     r = IContextMenu_QueryContextMenu( cm, hmenu, 0, 0x20, 0x7fff, CMF_DEFAULTONLY );
1112     if ( FAILED( r ) )
1113         goto end;
1114
1115     n = GetMenuItemCount( hmenu );
1116     for ( i = 0; i < n; i++ )
1117     {
1118         memset( &info, 0, sizeof info );
1119         info.cbSize = sizeof info;
1120         info.fMask = MIIM_FTYPE | MIIM_STRING | MIIM_STATE | MIIM_DATA | MIIM_ID;
1121         info.dwTypeData = string;
1122         info.cch = sizeof string;
1123         string[0] = 0;
1124         GetMenuItemInfoW( hmenu, i, TRUE, &info );
1125
1126         TRACE("menu %d %s %08x %08lx %08x %08x\n", i, debugstr_w(string),
1127             info.fState, info.dwItemData, info.fType, info.wID );
1128         if ( ( !sei->lpVerb && (info.fState & MFS_DEFAULT) ) ||
1129              ( sei->lpVerb && !lstrcmpiW( sei->lpVerb, string ) ) )
1130         {
1131             def = i;
1132             break;
1133         }
1134     }
1135
1136     r = E_FAIL;
1137     if ( def == -1 )
1138         goto end;
1139
1140     memset( &ici, 0, sizeof ici );
1141     ici.cbSize = sizeof ici;
1142     ici.fMask = CMIC_MASK_UNICODE;
1143     ici.nShow = sei->nShow;
1144     ici.lpVerb = MAKEINTRESOURCEA( def );
1145     ici.hwnd = sei->hwnd;
1146     ici.lpParametersW = sei->lpParameters;
1147
1148     r = IContextMenu_InvokeCommand( cm, (LPCMINVOKECOMMANDINFO) &ici );
1149
1150     TRACE("invoke command returned %08x\n", r );
1151
1152 end:
1153     if ( hmenu )
1154         DestroyMenu( hmenu );
1155     if ( cm )
1156         IContextMenu_Release( cm );
1157     return r;
1158 }
1159
1160 static HRESULT shellex_load_object_and_run( HKEY hkey, LPCGUID guid, LPSHELLEXECUTEINFOW sei )
1161 {
1162     IDataObject *dataobj = NULL;
1163     IObjectWithSite *ows = NULL;
1164     IShellExtInit *obj = NULL;
1165     HRESULT r;
1166
1167     TRACE("%p %s %p\n", hkey, debugstr_guid( guid ), sei );
1168
1169     r = CoInitialize( NULL );
1170     if ( FAILED( r ) )
1171         goto end;
1172
1173     r = CoCreateInstance( guid, NULL, CLSCTX_INPROC_SERVER,
1174                            &IID_IShellExtInit, (LPVOID*)&obj );
1175     if ( FAILED( r ) )
1176     {
1177         ERR("failed %08x\n", r );
1178         goto end;
1179     }
1180
1181     dataobj = shellex_get_dataobj( sei );
1182     if ( !dataobj )
1183     {
1184         ERR("failed to get data object\n");
1185         goto end;
1186     }
1187
1188     r = IShellExtInit_Initialize( obj, NULL, dataobj, hkey );
1189     if ( FAILED( r ) )
1190         goto end;
1191
1192     r = IShellExtInit_QueryInterface( obj, &IID_IObjectWithSite, (LPVOID*) &ows );
1193     if ( FAILED( r ) )
1194         goto end;
1195
1196     IObjectWithSite_SetSite( ows, NULL );
1197
1198     r = shellex_run_context_menu_default( obj, sei );
1199
1200 end:
1201     if ( ows )
1202         IObjectWithSite_Release( ows );
1203     if ( dataobj )
1204         IDataObject_Release( dataobj );
1205     if ( obj )
1206         IShellExtInit_Release( obj );
1207     CoUninitialize();
1208     return r;
1209 }
1210
1211
1212 /*************************************************************************
1213  *      ShellExecute_FromContextMenu [Internal]
1214  */
1215 static LONG ShellExecute_FromContextMenu( LPSHELLEXECUTEINFOW sei )
1216 {
1217     static const WCHAR szcm[] = { 's','h','e','l','l','e','x','\\',
1218         'C','o','n','t','e','x','t','M','e','n','u','H','a','n','d','l','e','r','s',0 };
1219     HKEY hkey, hkeycm = 0;
1220     WCHAR szguid[39];
1221     HRESULT hr;
1222     GUID guid;
1223     DWORD i;
1224     LONG r;
1225
1226     TRACE("%s\n", debugstr_w(sei->lpFile) );
1227
1228     hkey = ShellExecute_GetClassKey( sei );
1229     if ( !hkey )
1230         return ERROR_FUNCTION_FAILED;
1231
1232     r = RegOpenKeyW( hkey, szcm, &hkeycm );
1233     if ( r == ERROR_SUCCESS )
1234     {
1235         i = 0;
1236         while ( 1 )
1237         {
1238             r = RegEnumKeyW( hkeycm, i++, szguid, 39 );
1239             if ( r != ERROR_SUCCESS )
1240                 break;
1241
1242             hr = CLSIDFromString( szguid, &guid );
1243             if (SUCCEEDED(hr))
1244             {
1245                 /* stop at the first one that succeeds in running */
1246                 hr = shellex_load_object_and_run( hkey, &guid, sei );
1247                 if ( SUCCEEDED( hr ) )
1248                     break;
1249             }
1250         }
1251         RegCloseKey( hkeycm );
1252     }
1253
1254     if ( hkey != sei->hkeyClass )
1255         RegCloseKey( hkey );
1256     return r;
1257 }
1258
1259 /*************************************************************************
1260  *      SHELL_execute [Internal]
1261  */
1262 BOOL SHELL_execute( LPSHELLEXECUTEINFOW sei, SHELL_ExecuteW32 execfunc )
1263 {
1264     static const WCHAR wQuote[] = {'"',0};
1265     static const WCHAR wSpace[] = {' ',0};
1266     static const WCHAR wWww[] = {'w','w','w',0};
1267     static const WCHAR wFile[] = {'f','i','l','e',0};
1268     static const WCHAR wHttp[] = {'h','t','t','p',':','/','/',0};
1269     static const WCHAR wExplorer[] = {'e','x','p','l','o','r','e','r','.','e','x','e',0};
1270     static const DWORD unsupportedFlags =
1271         SEE_MASK_INVOKEIDLIST  | SEE_MASK_ICON         | SEE_MASK_HOTKEY |
1272         SEE_MASK_CONNECTNETDRV | SEE_MASK_FLAG_DDEWAIT | SEE_MASK_FLAG_NO_UI |
1273         SEE_MASK_UNICODE       | SEE_MASK_NO_CONSOLE   | SEE_MASK_ASYNCOK |
1274         SEE_MASK_HMONITOR;
1275
1276     WCHAR *wszApplicationName, wszParameters[1024], wszDir[MAX_PATH];
1277     DWORD dwApplicationNameLen = MAX_PATH+2;
1278     DWORD len;
1279     SHELLEXECUTEINFOW sei_tmp;  /* modifiable copy of SHELLEXECUTEINFO struct */
1280     WCHAR wfileName[MAX_PATH];
1281     WCHAR *env;
1282     WCHAR lpstrProtocol[256];
1283     LPCWSTR lpFile;
1284     UINT_PTR retval = 31;
1285     WCHAR wcmd[1024];
1286     WCHAR buffer[MAX_PATH];
1287     BOOL done;
1288
1289     /* make a local copy of the LPSHELLEXECUTEINFO structure and work with this from now on */
1290     memcpy(&sei_tmp, sei, sizeof(sei_tmp));
1291
1292     TRACE("mask=0x%08x hwnd=%p verb=%s file=%s parm=%s dir=%s show=0x%08x class=%s\n",
1293             sei_tmp.fMask, sei_tmp.hwnd, debugstr_w(sei_tmp.lpVerb),
1294             debugstr_w(sei_tmp.lpFile), debugstr_w(sei_tmp.lpParameters),
1295             debugstr_w(sei_tmp.lpDirectory), sei_tmp.nShow,
1296             ((sei_tmp.fMask & SEE_MASK_CLASSALL) == SEE_MASK_CLASSNAME) ?
1297                 debugstr_w(sei_tmp.lpClass) : "not used");
1298
1299     sei->hProcess = NULL;
1300
1301     /* make copies of all path/command strings */
1302     if (!sei_tmp.lpFile)
1303     {
1304         wszApplicationName = HeapAlloc(GetProcessHeap(), 0, dwApplicationNameLen*sizeof(WCHAR));
1305         *wszApplicationName = '\0';
1306     }
1307     else if (*sei_tmp.lpFile == '\"')
1308     {
1309         DWORD l = strlenW(sei_tmp.lpFile+1);
1310         if(l >= dwApplicationNameLen) dwApplicationNameLen = l+1;
1311         wszApplicationName = HeapAlloc(GetProcessHeap(), 0, dwApplicationNameLen*sizeof(WCHAR));
1312         memcpy(wszApplicationName, sei_tmp.lpFile+1, (l+1)*sizeof(WCHAR));
1313         if (wszApplicationName[l-1] == '\"')
1314             wszApplicationName[l-1] = '\0';
1315         TRACE("wszApplicationName=%s\n",debugstr_w(wszApplicationName));
1316     } else {
1317         DWORD l = strlenW(sei_tmp.lpFile)+1;
1318         if(l > dwApplicationNameLen) dwApplicationNameLen = l+1;
1319         wszApplicationName = HeapAlloc(GetProcessHeap(), 0, dwApplicationNameLen*sizeof(WCHAR));
1320         memcpy(wszApplicationName, sei_tmp.lpFile, l*sizeof(WCHAR));
1321     }
1322
1323     if (sei_tmp.lpParameters)
1324         strcpyW(wszParameters, sei_tmp.lpParameters);
1325     else
1326         *wszParameters = '\0';
1327
1328     if (sei_tmp.lpDirectory)
1329         strcpyW(wszDir, sei_tmp.lpDirectory);
1330     else
1331         *wszDir = '\0';
1332
1333     /* adjust string pointers to point to the new buffers */
1334     sei_tmp.lpFile = wszApplicationName;
1335     sei_tmp.lpParameters = wszParameters;
1336     sei_tmp.lpDirectory = wszDir;
1337
1338     if (sei_tmp.fMask & unsupportedFlags)
1339     {
1340         FIXME("flags ignored: 0x%08x\n", sei_tmp.fMask & unsupportedFlags);
1341     }
1342
1343     /* process the IDList */
1344     if (sei_tmp.fMask & SEE_MASK_IDLIST)
1345     {
1346         IShellExecuteHookW* pSEH;
1347
1348         HRESULT hr = SHBindToParent(sei_tmp.lpIDList, &IID_IShellExecuteHookW, (LPVOID*)&pSEH, NULL);
1349
1350         if (SUCCEEDED(hr))
1351         {
1352             hr = IShellExecuteHookW_Execute(pSEH, &sei_tmp);
1353
1354             IShellExecuteHookW_Release(pSEH);
1355
1356             if (hr == S_OK) {
1357                 HeapFree(GetProcessHeap(), 0, wszApplicationName);
1358                 return TRUE;
1359             }
1360         }
1361
1362         SHGetPathFromIDListW(sei_tmp.lpIDList, wszApplicationName);
1363         TRACE("-- idlist=%p (%s)\n", sei_tmp.lpIDList, debugstr_w(wszApplicationName));
1364     }
1365
1366     if ( ERROR_SUCCESS == ShellExecute_FromContextMenu( &sei_tmp ) )
1367     {
1368         sei->hInstApp = (HINSTANCE) 33;
1369         HeapFree(GetProcessHeap(), 0, wszApplicationName);
1370         return TRUE;
1371     }
1372
1373     if (sei_tmp.fMask & SEE_MASK_CLASSALL)
1374     {
1375         /* launch a document by fileclass like 'WordPad.Document.1' */
1376         /* the Commandline contains 'c:\Path\wordpad.exe "%1"' */
1377         /* FIXME: szCommandline should not be of a fixed size. Fixed to 1024, MAX_PATH is way too short! */
1378         ULONG cmask=(sei_tmp.fMask & SEE_MASK_CLASSALL);
1379         DWORD resultLen;
1380         HCR_GetExecuteCommandW((cmask == SEE_MASK_CLASSKEY) ? sei_tmp.hkeyClass : NULL,
1381                                (cmask == SEE_MASK_CLASSNAME) ? sei_tmp.lpClass: NULL,
1382                                sei_tmp.lpVerb,
1383                                wszParameters, sizeof(wszParameters)/sizeof(WCHAR));
1384
1385         /* FIXME: get the extension of lpFile, check if it fits to the lpClass */
1386         TRACE("SEE_MASK_CLASSNAME->'%s', doc->'%s'\n", debugstr_w(wszParameters), debugstr_w(wszApplicationName));
1387
1388         wcmd[0] = '\0';
1389         done = SHELL_ArgifyW(wcmd, sizeof(wcmd)/sizeof(WCHAR), wszParameters, wszApplicationName, sei_tmp.lpIDList, NULL, &resultLen);
1390         if (!done && wszApplicationName[0])
1391         {
1392             strcatW(wcmd, wSpace);
1393             strcatW(wcmd, wszApplicationName);
1394         }
1395         if (resultLen > sizeof(wcmd)/sizeof(WCHAR))
1396             ERR("Argify buffer not large enough... truncating\n");
1397         retval = execfunc(wcmd, NULL, FALSE, &sei_tmp, sei);
1398
1399         HeapFree(GetProcessHeap(), 0, wszApplicationName);
1400         return retval > 32;
1401     }
1402
1403     /* Has the IDList not yet been translated? */
1404     if (sei_tmp.fMask & SEE_MASK_IDLIST)
1405     {
1406         /* last chance to translate IDList: now also allow CLSID paths */
1407         if (SUCCEEDED(SHELL_GetPathFromIDListForExecuteW(sei_tmp.lpIDList, buffer, sizeof(buffer)))) {
1408             if (buffer[0]==':' && buffer[1]==':') {
1409                 /* open shell folder for the specified class GUID */
1410                 strcpyW(wszParameters, buffer);
1411                 strcpyW(wszApplicationName, wExplorer);
1412
1413                 sei_tmp.fMask &= ~SEE_MASK_INVOKEIDLIST;
1414             } else {
1415                 WCHAR target[MAX_PATH];
1416                 DWORD attribs;
1417                 DWORD resultLen;
1418                 /* Check if we're executing a directory and if so use the
1419                    handler for the Folder class */
1420                 strcpyW(target, buffer);
1421                 attribs = GetFileAttributesW(buffer);
1422                 if (attribs != INVALID_FILE_ATTRIBUTES &&
1423                     (attribs & FILE_ATTRIBUTE_DIRECTORY) &&
1424                     HCR_GetExecuteCommandW(0, wszFolder,
1425                                            sei_tmp.lpVerb,
1426                                            buffer, sizeof(buffer))) {
1427                     SHELL_ArgifyW(wszApplicationName, dwApplicationNameLen,
1428                                   buffer, target, sei_tmp.lpIDList, NULL, &resultLen);
1429                     if (resultLen > dwApplicationNameLen)
1430                         ERR("Argify buffer not large enough... truncating\n");
1431                 }
1432                 sei_tmp.fMask &= ~SEE_MASK_INVOKEIDLIST;
1433             }
1434         }
1435     }
1436
1437     /* expand environment strings */
1438     len = ExpandEnvironmentStringsW(sei_tmp.lpFile, NULL, 0);
1439     if (len>0)
1440     {
1441         LPWSTR buf;
1442         buf = HeapAlloc(GetProcessHeap(),0,(len+1)*sizeof(WCHAR));
1443
1444         ExpandEnvironmentStringsW(sei_tmp.lpFile, buf, len+1);
1445         HeapFree(GetProcessHeap(), 0, wszApplicationName);
1446         dwApplicationNameLen = len+1;
1447         wszApplicationName = buf;
1448
1449         sei_tmp.lpFile = wszApplicationName;
1450     }
1451
1452     if (*sei_tmp.lpParameters)
1453     {
1454         len = ExpandEnvironmentStringsW(sei_tmp.lpParameters, NULL, 0);
1455         if (len > 0)
1456         {
1457             LPWSTR buf;
1458             len++;
1459             buf = HeapAlloc(GetProcessHeap(),0,len*sizeof(WCHAR));
1460             ExpandEnvironmentStringsW(sei_tmp.lpParameters, buf, len);
1461             if (len > 1024)
1462                 ERR("Parameters exceeds buffer size (%i > 1024)\n",len);
1463             lstrcpynW(wszParameters, buf, min(1024,len));
1464             HeapFree(GetProcessHeap(),0,buf);
1465         }
1466     }
1467
1468     if (*sei_tmp.lpDirectory)
1469     {
1470         len = ExpandEnvironmentStringsW(sei_tmp.lpDirectory, NULL, 0);
1471         if (len > 0)
1472         {
1473             LPWSTR buf;
1474             len++;
1475             buf = HeapAlloc(GetProcessHeap(),0,len*sizeof(WCHAR));
1476             ExpandEnvironmentStringsW(sei_tmp.lpDirectory, buf, len);
1477             if (len > 1024)
1478                 ERR("Directory exceeds buffer size (%i > 1024)\n",len);
1479             lstrcpynW(wszDir, buf, min(1024,len));
1480             HeapFree(GetProcessHeap(),0,buf);
1481         }
1482     }
1483
1484     /* Else, try to execute the filename */
1485     TRACE("execute:%s,%s,%s\n", debugstr_w(wszApplicationName), debugstr_w(wszParameters), debugstr_w(wszDir));
1486
1487     /* separate out command line arguments from executable file name */
1488     if (!*sei_tmp.lpParameters) {
1489         /* If the executable path is quoted, handle the rest of the command line as parameters. */
1490         if (sei_tmp.lpFile[0] == '"') {
1491             LPWSTR src = wszApplicationName/*sei_tmp.lpFile*/ + 1;
1492             LPWSTR dst = wfileName;
1493             LPWSTR end;
1494
1495             /* copy the unquoted executable path to 'wfileName' */
1496             while(*src && *src!='"')
1497                 *dst++ = *src++;
1498
1499             *dst = '\0';
1500
1501             if (*src == '"') {
1502                 end = ++src;
1503
1504                 while(isspace(*src))
1505                     ++src;
1506             } else
1507                 end = src;
1508
1509             /* copy the parameter string to 'wszParameters' */
1510             strcpyW(wszParameters, src);
1511
1512             /* terminate previous command string after the quote character */
1513             *end = '\0';
1514         }
1515         else
1516         {
1517             /* If the executable name is not quoted, we have to use this search loop here,
1518                that in CreateProcess() is not sufficient because it does not handle shell links. */
1519             WCHAR buffer[MAX_PATH], xlpFile[MAX_PATH];
1520             LPWSTR space, s;
1521
1522             LPWSTR beg = wszApplicationName/*sei_tmp.lpFile*/;
1523             for(s=beg; (space=strchrW(s, ' ')); s=space+1) {
1524                 int idx = space-sei_tmp.lpFile;
1525                 memcpy(buffer, sei_tmp.lpFile, idx * sizeof(WCHAR));
1526                 buffer[idx] = '\0';
1527
1528                 /*FIXME This finds directory paths if the targeted file name contains spaces. */
1529                 if (SearchPathW(*sei_tmp.lpDirectory? sei_tmp.lpDirectory: NULL, buffer, wszExe, sizeof(xlpFile), xlpFile, NULL))
1530                 {
1531                     /* separate out command from parameter string */
1532                     LPCWSTR p = space + 1;
1533
1534                     while(isspaceW(*p))
1535                         ++p;
1536
1537                     strcpyW(wszParameters, p);
1538                     *space = '\0';
1539
1540                     break;
1541                 }
1542             }
1543
1544             strcpyW(wfileName, sei_tmp.lpFile);
1545         }
1546     } else
1547         strcpyW(wfileName, sei_tmp.lpFile);
1548
1549     lpFile = wfileName;
1550
1551     strcpyW(wcmd, wszApplicationName);
1552     if (sei_tmp.lpParameters[0]) {
1553         strcatW(wcmd, wSpace);
1554         strcatW(wcmd, wszParameters);
1555     }
1556
1557     retval = execfunc(wcmd, NULL, FALSE, &sei_tmp, sei);
1558     if (retval > 32) {
1559         HeapFree(GetProcessHeap(), 0, wszApplicationName);
1560         return TRUE;
1561     }
1562
1563     /* Else, try to find the executable */
1564     wcmd[0] = '\0';
1565     retval = SHELL_FindExecutable(sei_tmp.lpDirectory, lpFile, sei_tmp.lpVerb, wcmd, 1024, lpstrProtocol, &env, sei_tmp.lpIDList, sei_tmp.lpParameters);
1566     if (retval > 32)  /* Found */
1567     {
1568         WCHAR wszQuotedCmd[MAX_PATH+2];
1569         /* Must quote to handle case where cmd contains spaces,
1570          * else security hole if malicious user creates executable file "C:\\Program"
1571          */
1572         strcpyW(wszQuotedCmd, wQuote);
1573         strcatW(wszQuotedCmd, wcmd);
1574         strcatW(wszQuotedCmd, wQuote);
1575         if (wszParameters[0]) {
1576             strcatW(wszQuotedCmd, wSpace);
1577             strcatW(wszQuotedCmd, wszParameters);
1578         }
1579         TRACE("%s/%s => %s/%s\n", debugstr_w(wszApplicationName), debugstr_w(sei_tmp.lpVerb), debugstr_w(wszQuotedCmd), debugstr_w(lpstrProtocol));
1580         if (*lpstrProtocol)
1581             retval = execute_from_key(lpstrProtocol, wszApplicationName, env, sei_tmp.lpParameters, wcmd, execfunc, &sei_tmp, sei);
1582         else
1583             retval = execfunc(wszQuotedCmd, env, FALSE, &sei_tmp, sei);
1584         HeapFree( GetProcessHeap(), 0, env );
1585     }
1586     else if (PathIsURLW(lpFile))    /* File not found, check for URL */
1587     {
1588         static const WCHAR wShell[] = {'\\','s','h','e','l','l','\\',0};
1589         static const WCHAR wCommand[] = {'\\','c','o','m','m','a','n','d',0};
1590         LPWSTR lpstrRes;
1591         INT iSize;
1592
1593         lpstrRes = strchrW(lpFile, ':');
1594         if (lpstrRes)
1595             iSize = lpstrRes - lpFile;
1596         else
1597             iSize = strlenW(lpFile);
1598
1599         TRACE("Got URL: %s\n", debugstr_w(lpFile));
1600         /* Looking for ...protocol\shell\lpOperation\command */
1601         memcpy(lpstrProtocol, lpFile, iSize*sizeof(WCHAR));
1602         lpstrProtocol[iSize] = '\0';
1603         strcatW(lpstrProtocol, wShell);
1604         strcatW(lpstrProtocol, sei_tmp.lpVerb? sei_tmp.lpVerb: wszOpen);
1605         strcatW(lpstrProtocol, wCommand);
1606
1607         /* Remove File Protocol from lpFile */
1608         /* In the case file://path/file     */
1609         if (!strncmpiW(lpFile, wFile, iSize))
1610         {
1611             lpFile += iSize;
1612             while (*lpFile == ':') lpFile++;
1613         }
1614         retval = execute_from_key(lpstrProtocol, lpFile, NULL, sei_tmp.lpParameters, wcmd, execfunc, &sei_tmp, sei);
1615     }
1616     /* Check if file specified is in the form www.??????.*** */
1617     else if (!strncmpiW(lpFile, wWww, 3))
1618     {
1619         /* if so, append lpFile http:// and call ShellExecute */
1620         WCHAR lpstrTmpFile[256];
1621         strcpyW(lpstrTmpFile, wHttp);
1622         strcatW(lpstrTmpFile, lpFile);
1623         retval = (UINT_PTR)ShellExecuteW(sei_tmp.hwnd, sei_tmp.lpVerb, lpstrTmpFile, NULL, NULL, 0);
1624     }
1625
1626     TRACE("retval %u\n", retval);
1627
1628     HeapFree(GetProcessHeap(), 0, wszApplicationName);
1629
1630     sei->hInstApp = (HINSTANCE)(retval > 32 ? 33 : retval);
1631     return retval > 32;
1632 }
1633
1634 /*************************************************************************
1635  * ShellExecuteA                        [SHELL32.290]
1636  */
1637 HINSTANCE WINAPI ShellExecuteA(HWND hWnd, LPCSTR lpOperation,LPCSTR lpFile,
1638                                LPCSTR lpParameters,LPCSTR lpDirectory, INT iShowCmd)
1639 {
1640     SHELLEXECUTEINFOA sei;
1641
1642     TRACE("%p,%s,%s,%s,%s,%d\n",
1643           hWnd, debugstr_a(lpOperation), debugstr_a(lpFile),
1644           debugstr_a(lpParameters), debugstr_a(lpDirectory), iShowCmd);
1645
1646     sei.cbSize = sizeof(sei);
1647     sei.fMask = 0;
1648     sei.hwnd = hWnd;
1649     sei.lpVerb = lpOperation;
1650     sei.lpFile = lpFile;
1651     sei.lpParameters = lpParameters;
1652     sei.lpDirectory = lpDirectory;
1653     sei.nShow = iShowCmd;
1654     sei.lpIDList = 0;
1655     sei.lpClass = 0;
1656     sei.hkeyClass = 0;
1657     sei.dwHotKey = 0;
1658     sei.hProcess = 0;
1659
1660     ShellExecuteExA (&sei);
1661     return sei.hInstApp;
1662 }
1663
1664 /*************************************************************************
1665  * ShellExecuteExA                              [SHELL32.292]
1666  *
1667  */
1668 BOOL WINAPI ShellExecuteExA (LPSHELLEXECUTEINFOA sei)
1669 {
1670     SHELLEXECUTEINFOW seiW;
1671     BOOL ret;
1672     WCHAR *wVerb = NULL, *wFile = NULL, *wParameters = NULL, *wDirectory = NULL, *wClass = NULL;
1673
1674     TRACE("%p\n", sei);
1675
1676     memcpy(&seiW, sei, sizeof(SHELLEXECUTEINFOW));
1677
1678     if (sei->lpVerb)
1679         seiW.lpVerb = __SHCloneStrAtoW(&wVerb, sei->lpVerb);
1680
1681     if (sei->lpFile)
1682         seiW.lpFile = __SHCloneStrAtoW(&wFile, sei->lpFile);
1683
1684     if (sei->lpParameters)
1685         seiW.lpParameters = __SHCloneStrAtoW(&wParameters, sei->lpParameters);
1686
1687     if (sei->lpDirectory)
1688         seiW.lpDirectory = __SHCloneStrAtoW(&wDirectory, sei->lpDirectory);
1689
1690     if ((sei->fMask & SEE_MASK_CLASSALL) == SEE_MASK_CLASSNAME && sei->lpClass)
1691         seiW.lpClass = __SHCloneStrAtoW(&wClass, sei->lpClass);
1692     else
1693         seiW.lpClass = NULL;
1694
1695     ret = SHELL_execute( &seiW, SHELL_ExecuteW );
1696
1697     sei->hInstApp = seiW.hInstApp;
1698
1699     if (sei->fMask & SEE_MASK_NOCLOSEPROCESS)
1700         sei->hProcess = seiW.hProcess;
1701
1702     SHFree(wVerb);
1703     SHFree(wFile);
1704     SHFree(wParameters);
1705     SHFree(wDirectory);
1706     SHFree(wClass);
1707
1708     return ret;
1709 }
1710
1711 /*************************************************************************
1712  * ShellExecuteExW                              [SHELL32.293]
1713  *
1714  */
1715 BOOL WINAPI ShellExecuteExW (LPSHELLEXECUTEINFOW sei)
1716 {
1717     return SHELL_execute( sei, SHELL_ExecuteW );
1718 }
1719
1720 /*************************************************************************
1721  * ShellExecuteW                        [SHELL32.294]
1722  * from shellapi.h
1723  * WINSHELLAPI HINSTANCE APIENTRY ShellExecuteW(HWND hwnd, LPCWSTR lpOperation,
1724  * LPCWSTR lpFile, LPCWSTR lpParameters, LPCWSTR lpDirectory, INT nShowCmd);
1725  */
1726 HINSTANCE WINAPI ShellExecuteW(HWND hwnd, LPCWSTR lpOperation, LPCWSTR lpFile,
1727                                LPCWSTR lpParameters, LPCWSTR lpDirectory, INT nShowCmd)
1728 {
1729     SHELLEXECUTEINFOW sei;
1730
1731     TRACE("\n");
1732     sei.cbSize = sizeof(sei);
1733     sei.fMask = 0;
1734     sei.hwnd = hwnd;
1735     sei.lpVerb = lpOperation;
1736     sei.lpFile = lpFile;
1737     sei.lpParameters = lpParameters;
1738     sei.lpDirectory = lpDirectory;
1739     sei.nShow = nShowCmd;
1740     sei.lpIDList = 0;
1741     sei.lpClass = 0;
1742     sei.hkeyClass = 0;
1743     sei.dwHotKey = 0;
1744     sei.hProcess = 0;
1745
1746     SHELL_execute( &sei, SHELL_ExecuteW );
1747     return sei.hInstApp;
1748 }