dlls/msi/regsvr.c

   1 /*
   2  *      self-registerable dll functions for msi.dll
   3  *
   4  * Copyright (C) 2004 Raphael Junqueira
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "config.h"
  22
  23 #include <stdarg.h>
  24 #include <string.h>
  25
  26 #include "windef.h"
  27 #include "winbase.h"
  28 #include "winuser.h"
  29 #include "winreg.h"
  30 #include "winerror.h"
  31
  32 #include "ole2.h"
  33 #include "olectl.h"
  34
  35 #include "wine/debug.h"
  36
  37 #include "msi.h"
  38 #include "initguid.h"
  39 #include "msipriv.h"
  40
  41 WINE_DEFAULT_DEBUG_CHANNEL(msi);
  42
  43 /*
  44  * Near the bottom of this file are the exported DllRegisterServer and
  45  * DllUnregisterServer, which make all this worthwhile.
  46  */
  47
  48 /***********************************************************************
  49  *              interface for self-registering
  50  */
  51 struct regsvr_interface {
  52     IID const *iid;             /* NULL for end of list */
  53     LPCSTR name;                /* can be NULL to omit */
  54     IID const *base_iid;        /* can be NULL to omit */
  55     int num_methods;            /* can be <0 to omit */
  56     CLSID const *ps_clsid;      /* can be NULL to omit */
  57     CLSID const *ps_clsid32;    /* can be NULL to omit */
  58 };
  59
  60 static HRESULT register_interfaces(struct regsvr_interface const *list);
  61 static HRESULT unregister_interfaces(struct regsvr_interface const *list);
  62
  63 /**
  64  * @todo: maybe adding typelibs support here
  65  * [Software\\Classes\\CLSID\\{000C1090-0000-0000-C000-000000000046}\\TypeLib] 1080380217
  66  * @="{000C1092-0000-0000-C000-000000000046}"
  67  */
  68 struct regsvr_coclass {
  69     CLSID const *clsid;         /* NULL for end of list */
  70     LPCSTR name;                /* can be NULL to omit */
  71     LPCSTR iph32;               /* can be NULL to omit */
  72     LPCSTR ips;                 /* can be NULL to omit */
  73     LPCSTR ips32;               /* can be NULL to omit */
  74     LPCSTR ips32_tmodel;        /* can be NULL to omit, if apartment, iph32 must be set */
  75     LPCSTR progid;              /* can be NULL to omit */
  76     LPCSTR viprogid;            /* can be NULL to omit */
  77     LPCSTR progid_extra;        /* can be NULL to omit */
  78 };
  79
  80 static HRESULT register_coclasses(struct regsvr_coclass const *list);
  81 static HRESULT unregister_coclasses(struct regsvr_coclass const *list);
  82
  83 /***********************************************************************
  84  *              static string constants
  85  */
  86 static WCHAR const interface_keyname[10] = {
  87     'I', 'n', 't', 'e', 'r', 'f', 'a', 'c', 'e', 0 };
  88 static WCHAR const base_ifa_keyname[14] = {
  89     'B', 'a', 's', 'e', 'I', 'n', 't', 'e', 'r', 'f', 'a', 'c',
  90     'e', 0 };
  91 static WCHAR const num_methods_keyname[11] = {
  92     'N', 'u', 'm', 'M', 'e', 't', 'h', 'o', 'd', 's', 0 };
  93 static WCHAR const ps_clsid_keyname[15] = {
  94     'P', 'r', 'o', 'x', 'y', 'S', 't', 'u', 'b', 'C', 'l', 's',
  95     'i', 'd', 0 };
  96 static WCHAR const ps_clsid32_keyname[17] = {
  97     'P', 'r', 'o', 'x', 'y', 'S', 't', 'u', 'b', 'C', 'l', 's',
  98     'i', 'd', '3', '2', 0 };
  99 static WCHAR const clsid_keyname[6] = {
 100     'C', 'L', 'S', 'I', 'D', 0 };
 101 static WCHAR const curver_keyname[7] = {
 102     'C', 'u', 'r', 'V', 'e', 'r', 0 };
 103 static WCHAR const iph32_keyname[] = {
 104     'I', 'n', 'P', 'r', 'o', 'c', 'H', 'a', 'n', 'd', 'l', 'e', 'r',
 105     '3', '2', 0 };
 106 static WCHAR const ips_keyname[13] = {
 107     'I', 'n', 'P', 'r', 'o', 'c', 'S', 'e', 'r', 'v', 'e', 'r',
 108     0 };
 109 static WCHAR const ips32_keyname[15] = {
 110     'I', 'n', 'P', 'r', 'o', 'c', 'S', 'e', 'r', 'v', 'e', 'r',
 111     '3', '2', 0 };
 112 static WCHAR const progid_keyname[7] = {
 113     'P', 'r', 'o', 'g', 'I', 'D', 0 };
 114 static WCHAR const viprogid_keyname[25] = {
 115     'V', 'e', 'r', 's', 'i', 'o', 'n', 'I', 'n', 'd', 'e', 'p',
 116     'e', 'n', 'd', 'e', 'n', 't', 'P', 'r', 'o', 'g', 'I', 'D',
 117     0 };
 118 static char const tmodel_valuename[] = "ThreadingModel";
 119
 120 /***********************************************************************
 121  *              static helper functions
 122  */
 123 static LONG register_key_guid(HKEY base, WCHAR const *name, GUID const *guid);
 124 static LONG register_key_defvalueW(HKEY base, WCHAR const *name,
 125                                    WCHAR const *value);
 126 static LONG register_key_defvalueA(HKEY base, WCHAR const *name,
 127                                    char const *value);
 128 static LONG register_progid(WCHAR const *clsid,
 129                             char const *progid, char const *curver_progid,
 130                             char const *name, char const *extra);
 131 static LONG recursive_delete_key(HKEY key);
 132 static LONG recursive_delete_keyA(HKEY base, char const *name);
 133 static LONG recursive_delete_keyW(HKEY base, WCHAR const *name);
 134
 135 /***********************************************************************
 136  *              register_interfaces
 137  */
 138 static HRESULT register_interfaces(struct regsvr_interface const *list) {
 139     LONG res = ERROR_SUCCESS;
 140     HKEY interface_key;
 141
 142     res = RegCreateKeyExW(HKEY_CLASSES_ROOT, interface_keyname, 0, NULL, 0,
 143                           KEY_READ | KEY_WRITE, NULL, &interface_key, NULL);
 144     if (res != ERROR_SUCCESS) goto error_return;
 145
 146     for (; res == ERROR_SUCCESS && list->iid; ++list) {
 147         WCHAR buf[39];
 148         HKEY iid_key;
 149
 150         StringFromGUID2(list->iid, buf, 39);
 151         res = RegCreateKeyExW(interface_key, buf, 0, NULL, 0,
 152                               KEY_READ | KEY_WRITE, NULL, &iid_key, NULL);
 153         if (res != ERROR_SUCCESS) goto error_close_interface_key;
 154
 155         if (list->name) {
 156             res = RegSetValueExA(iid_key, NULL, 0, REG_SZ,
 157                                  (CONST BYTE*)(list->name),
 158                                  strlen(list->name) + 1);
 159             if (res != ERROR_SUCCESS) goto error_close_iid_key;
 160         }
 161
 162         if (list->base_iid) {
 163             res = register_key_guid(iid_key, base_ifa_keyname, list->base_iid);
 164             if (res != ERROR_SUCCESS) goto error_close_iid_key;
 165         }
 166
 167         if (0 <= list->num_methods) {
 168             static WCHAR const fmt[3] = { '%', 'd', 0 };
 169             HKEY key;
 170
 171             res = RegCreateKeyExW(iid_key, num_methods_keyname, 0, NULL, 0,
 172                                   KEY_READ | KEY_WRITE, NULL, &key, NULL);
 173             if (res != ERROR_SUCCESS) goto error_close_iid_key;
 174
 175             wsprintfW(buf, fmt, list->num_methods);
 176             res = RegSetValueExW(key, NULL, 0, REG_SZ,
 177                                  (CONST BYTE*)buf,
 178                                  (lstrlenW(buf) + 1) * sizeof(WCHAR));
 179             RegCloseKey(key);
 180
 181             if (res != ERROR_SUCCESS) goto error_close_iid_key;
 182         }
 183
 184         if (list->ps_clsid) {
 185             register_key_guid(iid_key, ps_clsid_keyname, list->ps_clsid);
 186             if (res != ERROR_SUCCESS) goto error_close_iid_key;
 187         }
 188
 189         if (list->ps_clsid32) {
 190             register_key_guid(iid_key, ps_clsid32_keyname, list->ps_clsid32);
 191             if (res != ERROR_SUCCESS) goto error_close_iid_key;
 192         }
 193
 194     error_close_iid_key:
 195         RegCloseKey(iid_key);
 196     }
 197
 198 error_close_interface_key:
 199     RegCloseKey(interface_key);
 200 error_return:
 201     return res != ERROR_SUCCESS ? HRESULT_FROM_WIN32(res) : S_OK;
 202 }
 203
 204 /***********************************************************************
 205  *              unregister_interfaces
 206  */
 207 static HRESULT unregister_interfaces(struct regsvr_interface const *list) {
 208     LONG res = ERROR_SUCCESS;
 209     HKEY interface_key;
 210
 211     res = RegOpenKeyExW(HKEY_CLASSES_ROOT, interface_keyname, 0,
 212                         KEY_READ | KEY_WRITE, &interface_key);
 213     if (res == ERROR_FILE_NOT_FOUND) return S_OK;
 214     if (res != ERROR_SUCCESS) goto error_return;
 215
 216     for (; res == ERROR_SUCCESS && list->iid; ++list) {
 217         WCHAR buf[39];
 218
 219         StringFromGUID2(list->iid, buf, 39);
 220         res = recursive_delete_keyW(interface_key, buf);
 221     }
 222
 223     RegCloseKey(interface_key);
 224 error_return:
 225     return res != ERROR_SUCCESS ? HRESULT_FROM_WIN32(res) : S_OK;
 226 }
 227
 228 /***********************************************************************
 229  *              register_coclasses
 230  */
 231 static HRESULT register_coclasses(struct regsvr_coclass const *list) {
 232     LONG res = ERROR_SUCCESS;
 233     HKEY coclass_key;
 234
 235     res = RegCreateKeyExW(HKEY_CLASSES_ROOT, clsid_keyname, 0, NULL, 0,
 236                           KEY_READ | KEY_WRITE, NULL, &coclass_key, NULL);
 237     if (res != ERROR_SUCCESS) goto error_return;
 238
 239     for (; res == ERROR_SUCCESS && list->clsid; ++list) {
 240         WCHAR buf[39];
 241         HKEY clsid_key;
 242
 243         StringFromGUID2(list->clsid, buf, 39);
 244         res = RegCreateKeyExW(coclass_key, buf, 0, NULL, 0,
 245                               KEY_READ | KEY_WRITE, NULL, &clsid_key, NULL);
 246         if (res != ERROR_SUCCESS) goto error_close_coclass_key;
 247
 248         if (list->name) {
 249             res = RegSetValueExA(clsid_key, NULL, 0, REG_SZ,
 250                                  (CONST BYTE*)(list->name),
 251                                  strlen(list->name) + 1);
 252             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 253         }
 254
 255         if (list->iph32) {
 256             HKEY iph32_key;
 257
 258             res = RegCreateKeyExW(clsid_key, iph32_keyname, 0, NULL, 0,
 259                                   KEY_READ | KEY_WRITE, NULL,
 260                                   &iph32_key, NULL);
 261             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 262
 263             res = RegSetValueExA(iph32_key, NULL, 0, REG_SZ,
 264                                  (CONST BYTE*)list->iph32,
 265                                  lstrlenA(list->iph32) + 1);
 266             RegCloseKey(iph32_key);
 267             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 268         }
 269
 270         if (list->ips) {
 271             res = register_key_defvalueA(clsid_key, ips_keyname, list->ips);
 272             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 273         }
 274
 275         if (list->ips32) {
 276             HKEY ips32_key;
 277
 278             res = RegCreateKeyExW(clsid_key, ips32_keyname, 0, NULL, 0,
 279                                   KEY_READ | KEY_WRITE, NULL,
 280                                   &ips32_key, NULL);
 281             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 282
 283             res = RegSetValueExA(ips32_key, NULL, 0, REG_SZ,
 284                                  (CONST BYTE*)list->ips32,
 285                                  lstrlenA(list->ips32) + 1);
 286             if (res == ERROR_SUCCESS && list->ips32_tmodel)
 287                 res = RegSetValueExA(ips32_key, tmodel_valuename, 0, REG_SZ,
 288                                      (CONST BYTE*)list->ips32_tmodel,
 289                                      strlen(list->ips32_tmodel) + 1);
 290             RegCloseKey(ips32_key);
 291             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 292         }
 293
 294         if (list->progid) {
 295             res = register_key_defvalueA(clsid_key, progid_keyname,
 296                                          list->progid);
 297             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 298
 299             res = register_progid(buf, list->progid, NULL,
 300                                   list->name, list->progid_extra);
 301             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 302         }
 303
 304         if (list->viprogid) {
 305             res = register_key_defvalueA(clsid_key, viprogid_keyname,
 306                                          list->viprogid);
 307             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 308
 309             res = register_progid(buf, list->viprogid, list->progid,
 310                                   list->name, list->progid_extra);
 311             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 312         }
 313
 314     error_close_clsid_key:
 315         RegCloseKey(clsid_key);
 316     }
 317
 318 error_close_coclass_key:
 319     RegCloseKey(coclass_key);
 320 error_return:
 321     return res != ERROR_SUCCESS ? HRESULT_FROM_WIN32(res) : S_OK;
 322 }
 323
 324 /***********************************************************************
 325  *              unregister_coclasses
 326  */
 327 static HRESULT unregister_coclasses(struct regsvr_coclass const *list) {
 328     LONG res = ERROR_SUCCESS;
 329     HKEY coclass_key;
 330
 331     res = RegOpenKeyExW(HKEY_CLASSES_ROOT, clsid_keyname, 0,
 332                         KEY_READ | KEY_WRITE, &coclass_key);
 333     if (res == ERROR_FILE_NOT_FOUND) return S_OK;
 334     if (res != ERROR_SUCCESS) goto error_return;
 335
 336     for (; res == ERROR_SUCCESS && list->clsid; ++list) {
 337         WCHAR buf[39];
 338
 339         StringFromGUID2(list->clsid, buf, 39);
 340         res = recursive_delete_keyW(coclass_key, buf);
 341         if (res != ERROR_SUCCESS) goto error_close_coclass_key;
 342
 343         if (list->progid) {
 344             res = recursive_delete_keyA(HKEY_CLASSES_ROOT, list->progid);
 345             if (res != ERROR_SUCCESS) goto error_close_coclass_key;
 346         }
 347
 348         if (list->viprogid) {
 349             res = recursive_delete_keyA(HKEY_CLASSES_ROOT, list->viprogid);
 350             if (res != ERROR_SUCCESS) goto error_close_coclass_key;
 351         }
 352     }
 353
 354 error_close_coclass_key:
 355     RegCloseKey(coclass_key);
 356 error_return:
 357     return res != ERROR_SUCCESS ? HRESULT_FROM_WIN32(res) : S_OK;
 358 }
 359
 360 /***********************************************************************
 361  *              regsvr_key_guid
 362  */
 363 static LONG register_key_guid(HKEY base, WCHAR const *name, GUID const *guid) {
 364     WCHAR buf[39];
 365
 366     StringFromGUID2(guid, buf, 39);
 367     return register_key_defvalueW(base, name, buf);
 368 }
 369
 370 /***********************************************************************
 371  *              regsvr_key_defvalueW
 372  */
 373 static LONG register_key_defvalueW(
 374     HKEY base,
 375     WCHAR const *name,
 376     WCHAR const *value) {
 377     LONG res;
 378     HKEY key;
 379
 380     res = RegCreateKeyExW(base, name, 0, NULL, 0,
 381                           KEY_READ | KEY_WRITE, NULL, &key, NULL);
 382     if (res != ERROR_SUCCESS) return res;
 383     res = RegSetValueExW(key, NULL, 0, REG_SZ, (CONST BYTE*)value,
 384                          (lstrlenW(value) + 1) * sizeof(WCHAR));
 385     RegCloseKey(key);
 386     return res;
 387 }
 388
 389 /***********************************************************************
 390  *              regsvr_key_defvalueA
 391  */
 392 static LONG register_key_defvalueA(
 393     HKEY base,
 394     WCHAR const *name,
 395     char const *value) {
 396     LONG res;
 397     HKEY key;
 398
 399     res = RegCreateKeyExW(base, name, 0, NULL, 0,
 400                           KEY_READ | KEY_WRITE, NULL, &key, NULL);
 401     if (res != ERROR_SUCCESS) return res;
 402     res = RegSetValueExA(key, NULL, 0, REG_SZ, (CONST BYTE*)value,
 403                          lstrlenA(value) + 1);
 404     RegCloseKey(key);
 405     return res;
 406 }
 407
 408 /***********************************************************************
 409  *              regsvr_progid
 410  */
 411 static LONG register_progid(
 412     WCHAR const *clsid,
 413     char const *progid,
 414     char const *curver_progid,
 415     char const *name,
 416     char const *extra) {
 417     LONG res;
 418     HKEY progid_key;
 419
 420     res = RegCreateKeyExA(HKEY_CLASSES_ROOT, progid, 0,
 421                           NULL, 0, KEY_READ | KEY_WRITE, NULL,
 422                           &progid_key, NULL);
 423     if (res != ERROR_SUCCESS) return res;
 424
 425     if (name) {
 426         res = RegSetValueExA(progid_key, NULL, 0, REG_SZ,
 427                              (CONST BYTE*)name, strlen(name) + 1);
 428         if (res != ERROR_SUCCESS) goto error_close_progid_key;
 429     }
 430
 431     if (clsid) {
 432         res = register_key_defvalueW(progid_key, clsid_keyname, clsid);
 433         if (res != ERROR_SUCCESS) goto error_close_progid_key;
 434     }
 435
 436     if (curver_progid) {
 437         res = register_key_defvalueA(progid_key, curver_keyname,
 438                                      curver_progid);
 439         if (res != ERROR_SUCCESS) goto error_close_progid_key;
 440     }
 441
 442     if (extra) {
 443         HKEY extra_key;
 444
 445         res = RegCreateKeyExA(progid_key, extra, 0,
 446                               NULL, 0, KEY_READ | KEY_WRITE, NULL,
 447                               &extra_key, NULL);
 448         if (res == ERROR_SUCCESS)
 449             RegCloseKey(extra_key);
 450     }
 451
 452 error_close_progid_key:
 453     RegCloseKey(progid_key);
 454     return res;
 455 }
 456
 457 /***********************************************************************
 458  *              recursive_delete_key
 459  */
 460 static LONG recursive_delete_key(HKEY key) {
 461     LONG res;
 462     WCHAR subkey_name[MAX_PATH];
 463     DWORD cName;
 464     HKEY subkey;
 465
 466     for (;;) {
 467         cName = sizeof(subkey_name) / sizeof(WCHAR);
 468         res = RegEnumKeyExW(key, 0, subkey_name, &cName,
 469                             NULL, NULL, NULL, NULL);
 470         if (res != ERROR_SUCCESS && res != ERROR_MORE_DATA) {
 471             res = ERROR_SUCCESS; /* presumably we're done enumerating */
 472             break;
 473         }
 474         res = RegOpenKeyExW(key, subkey_name, 0,
 475                             KEY_READ | KEY_WRITE, &subkey);
 476         if (res == ERROR_FILE_NOT_FOUND) continue;
 477         if (res != ERROR_SUCCESS) break;
 478
 479         res = recursive_delete_key(subkey);
 480         RegCloseKey(subkey);
 481         if (res != ERROR_SUCCESS) break;
 482     }
 483
 484     if (res == ERROR_SUCCESS) res = RegDeleteKeyW(key, 0);
 485     return res;
 486 }
 487
 488 /***********************************************************************
 489  *              recursive_delete_keyA
 490  */
 491 static LONG recursive_delete_keyA(HKEY base, char const *name) {
 492     LONG res;
 493     HKEY key;
 494
 495     res = RegOpenKeyExA(base, name, 0, KEY_READ | KEY_WRITE, &key);
 496     if (res == ERROR_FILE_NOT_FOUND) return ERROR_SUCCESS;
 497     if (res != ERROR_SUCCESS) return res;
 498     res = recursive_delete_key(key);
 499     RegCloseKey(key);
 500     return res;
 501 }
 502
 503 /***********************************************************************
 504  *              recursive_delete_keyW
 505  */
 506 static LONG recursive_delete_keyW(HKEY base, WCHAR const *name) {
 507     LONG res;
 508     HKEY key;
 509
 510     res = RegOpenKeyExW(base, name, 0, KEY_READ | KEY_WRITE, &key);
 511     if (res == ERROR_FILE_NOT_FOUND) return ERROR_SUCCESS;
 512     if (res != ERROR_SUCCESS) return res;
 513     res = recursive_delete_key(key);
 514     RegCloseKey(key);
 515     return res;
 516 }
 517
 518 /***********************************************************************
 519  *              coclass list
 520  */
 521 static struct regsvr_coclass const coclass_list[] = {
 522     {
 523         &CLSID_IMsiServer,
 524         "Msi install server",
 525         "ole32.dll",
 526         NULL,
 527         "msi.dll",
 528         "Apartment",
 529         "WindowsInstaller.Installer",
 530         NULL
 531     },
 532     {
 533         &CLSID_IMsiServerMessage,
 534         "Wine Installer Message RPC",
 535         NULL,
 536         NULL,
 537         "msi.dll",
 538         NULL,
 539         "WindowsInstaller.Message",
 540         NULL
 541     },
 542     {
 543         &CLSID_IMsiServerX1,
 544         "Msi install server",
 545         "ole32.dll",
 546         NULL,
 547         "msi.dll",
 548         "Apartment",
 549         "WindowsInstaller.Installer",
 550         NULL
 551     },
 552     {
 553         &CLSID_IMsiServerX2,
 554         "Msi install server",
 555         "ole32.dll",
 556         NULL,
 557         "msi.dll",
 558         "Apartment",
 559         "WindowsInstaller.Installer",
 560         NULL
 561     },
 562     {
 563         &CLSID_IMsiServerX3,
 564         "Msi install server",
 565         "ole32.dll",
 566         NULL,
 567         "msi.dll",
 568         "Apartment",
 569         "WindowsInstaller.Installer",
 570         NULL
 571     },
 572     { NULL }                    /* list terminator */
 573 };
 574
 575 /***********************************************************************
 576  *              interface list
 577  */
 578 /*
 579  * we should declare: (@see ole32/regsvr.c for examples)
 580  [-HKEY_CLASSES_ROOT\Interface\{000C101C-0000-0000-C000-000000000046}]
 581  [-HKEY_CLASSES_ROOT\Interface\{000C101D-0000-0000-C000-000000000046}]
 582  [-HKEY_CLASSES_ROOT\Interface\{000C1025-0000-0000-C000-000000000046}]
 583  [-HKEY_CLASSES_ROOT\Interface\{000C1033-0000-0000-C000-000000000046}]
 584  [-HKEY_CLASSES_ROOT\Interface\{000C1090-0000-0000-C000-000000000046}]
 585  [-HKEY_CLASSES_ROOT\Interface\{000C1093-0000-0000-C000-000000000046}]
 586  [-HKEY_CLASSES_ROOT\Interface\{000C1095-0000-0000-C000-000000000046}]
 587  [-HKEY_CLASSES_ROOT\Interface\{000C109A-0000-0000-C000-000000000046}]
 588  [-HKEY_CLASSES_ROOT\Interface\{000C109B-0000-0000-C000-000000000046}]
 589  [-HKEY_CLASSES_ROOT\Interface\{000C109C-0000-0000-C000-000000000046}]
 590  [-HKEY_CLASSES_ROOT\Interface\{000C109D-0000-0000-C000-000000000046}]
 591  [-HKEY_CLASSES_ROOT\Interface\{000C109E-0000-0000-C000-000000000046}]
 592  [-HKEY_CLASSES_ROOT\Interface\{000C109F-0000-0000-C000-000000000046}]
 593 */
 594 static struct regsvr_interface const interface_list[] = {
 595     { NULL }                    /* list terminator */
 596 };
 597
 598 static HRESULT register_msiexec(void)
 599 {
 600     static const WCHAR key[] = {
 601         'S','o','f','t','w','a','r','e',
 602         '\\','M','i','c','r','o','s','o','f','t',
 603         '\\','W','i','n','d','o','w','s',
 604         '\\','C','u','r','r','e','n','t','V','e','r','s','i','o','n',
 605         '\\','I','n','s','t','a','l','l','e','r',0 };
 606     static const WCHAR val[] = {
 607         'I','n','s','t','a','l','l','e','r','L','o','c','a','t','i','o','n',0 };
 608     WCHAR path[MAX_PATH];
 609     HKEY hkey;
 610     LONG res;
 611     INT len;
 612
 613     len = GetSystemDirectoryW(path, MAX_PATH);
 614     if (!len || len > MAX_PATH)
 615         return E_FAIL;
 616
 617     res = RegCreateKeyExW(HKEY_LOCAL_MACHINE, key, 0,
 618                           NULL, 0, KEY_READ | KEY_WRITE, NULL,
 619                           &hkey, NULL);
 620     if (res != ERROR_SUCCESS)
 621         return E_FAIL;
 622
 623     res = RegSetValueExW(hkey, val, 0, REG_SZ,
 624                          (BYTE*)path, (len + 1)*sizeof(WCHAR));
 625
 626     RegCloseKey(hkey);
 627
 628     return (res == ERROR_SUCCESS) ? S_OK : E_FAIL;
 629 }
 630
 631 /***********************************************************************
 632  *              DllRegisterServer (MSI.@)
 633  */
 634 HRESULT WINAPI DllRegisterServer(void)
 635 {
 636     HRESULT hr;
 637
 638     TRACE("\n");
 639
 640     hr = register_coclasses(coclass_list);
 641     if (SUCCEEDED(hr))
 642         hr = register_interfaces(interface_list);
 643     if (SUCCEEDED(hr))
 644         hr = register_msiexec();
 645     return hr;
 646 }
 647
 648 /***********************************************************************
 649  *              DllUnregisterServer (MSI.@)
 650  */
 651 HRESULT WINAPI DllUnregisterServer(void)
 652 {
 653     HRESULT hr;
 654
 655     TRACE("\n");
 656
 657     hr = unregister_coclasses(coclass_list);
 658     if (SUCCEEDED(hr))
 659         hr = unregister_interfaces(interface_list);
 660     return hr;
 661 }