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     DWORD flags;
  76     LPCSTR progid;              /* can be NULL to omit */
  77     LPCSTR viprogid;            /* can be NULL to omit */
  78     LPCSTR progid_extra;        /* can be NULL to omit */
  79 };
  80
  81 /* flags for regsvr_coclass.flags */
  82 #define PROGID_CLSID                  0x00000010
  83
  84 static HRESULT register_coclasses(struct regsvr_coclass const *list);
  85 static HRESULT unregister_coclasses(struct regsvr_coclass const *list);
  86
  87 /***********************************************************************
  88  *              static string constants
  89  */
  90 static WCHAR const interface_keyname[10] = {
  91     'I', 'n', 't', 'e', 'r', 'f', 'a', 'c', 'e', 0 };
  92 static WCHAR const base_ifa_keyname[14] = {
  93     'B', 'a', 's', 'e', 'I', 'n', 't', 'e', 'r', 'f', 'a', 'c',
  94     'e', 0 };
  95 static WCHAR const num_methods_keyname[11] = {
  96     'N', 'u', 'm', 'M', 'e', 't', 'h', 'o', 'd', 's', 0 };
  97 static WCHAR const ps_clsid_keyname[15] = {
  98     'P', 'r', 'o', 'x', 'y', 'S', 't', 'u', 'b', 'C', 'l', 's',
  99     'i', 'd', 0 };
 100 static WCHAR const ps_clsid32_keyname[17] = {
 101     'P', 'r', 'o', 'x', 'y', 'S', 't', 'u', 'b', 'C', 'l', 's',
 102     'i', 'd', '3', '2', 0 };
 103 static WCHAR const clsid_keyname[6] = {
 104     'C', 'L', 'S', 'I', 'D', 0 };
 105 static WCHAR const curver_keyname[7] = {
 106     'C', 'u', 'r', 'V', 'e', 'r', 0 };
 107 static WCHAR const iph32_keyname[] = {
 108     'I', 'n', 'P', 'r', 'o', 'c', 'H', 'a', 'n', 'd', 'l', 'e', 'r',
 109     '3', '2', 0 };
 110 static WCHAR const ips_keyname[13] = {
 111     'I', 'n', 'P', 'r', 'o', 'c', 'S', 'e', 'r', 'v', 'e', 'r',
 112     0 };
 113 static WCHAR const ips32_keyname[15] = {
 114     'I', 'n', 'P', 'r', 'o', 'c', 'S', 'e', 'r', 'v', 'e', 'r',
 115     '3', '2', 0 };
 116 static WCHAR const progid_keyname[7] = {
 117     'P', 'r', 'o', 'g', 'I', 'D', 0 };
 118 static WCHAR const viprogid_keyname[25] = {
 119     'V', 'e', 'r', 's', 'i', 'o', 'n', 'I', 'n', 'd', 'e', 'p',
 120     'e', 'n', 'd', 'e', 'n', 't', 'P', 'r', 'o', 'g', 'I', 'D',
 121     0 };
 122 static char const tmodel_valuename[] = "ThreadingModel";
 123
 124 /***********************************************************************
 125  *              static helper functions
 126  */
 127 static LONG register_key_guid(HKEY base, WCHAR const *name, GUID const *guid);
 128 static LONG register_key_defvalueW(HKEY base, WCHAR const *name,
 129                                    WCHAR const *value);
 130 static LONG register_key_defvalueA(HKEY base, WCHAR const *name,
 131                                    char const *value);
 132 static LONG register_progid(WCHAR const *clsid,
 133                             char const *progid, char const *curver_progid,
 134                             char const *name, char const *extra);
 135 static LONG recursive_delete_key(HKEY key);
 136 static LONG recursive_delete_keyA(HKEY base, char const *name);
 137 static LONG recursive_delete_keyW(HKEY base, WCHAR const *name);
 138
 139 /***********************************************************************
 140  *              register_interfaces
 141  */
 142 static HRESULT register_interfaces(struct regsvr_interface const *list) {
 143     LONG res = ERROR_SUCCESS;
 144     HKEY interface_key;
 145
 146     res = RegCreateKeyExW(HKEY_CLASSES_ROOT, interface_keyname, 0, NULL, 0,
 147                           KEY_READ | KEY_WRITE, NULL, &interface_key, NULL);
 148     if (res != ERROR_SUCCESS) goto error_return;
 149
 150     for (; res == ERROR_SUCCESS && list->iid; ++list) {
 151         WCHAR buf[39];
 152         HKEY iid_key;
 153
 154         StringFromGUID2(list->iid, buf, 39);
 155         res = RegCreateKeyExW(interface_key, buf, 0, NULL, 0,
 156                               KEY_READ | KEY_WRITE, NULL, &iid_key, NULL);
 157         if (res != ERROR_SUCCESS) goto error_close_interface_key;
 158
 159         if (list->name) {
 160             res = RegSetValueExA(iid_key, NULL, 0, REG_SZ,
 161                                  (CONST BYTE*)(list->name),
 162                                  strlen(list->name) + 1);
 163             if (res != ERROR_SUCCESS) goto error_close_iid_key;
 164         }
 165
 166         if (list->base_iid) {
 167             res = register_key_guid(iid_key, base_ifa_keyname, list->base_iid);
 168             if (res != ERROR_SUCCESS) goto error_close_iid_key;
 169         }
 170
 171         if (0 <= list->num_methods) {
 172             static WCHAR const fmt[3] = { '%', 'd', 0 };
 173             HKEY key;
 174
 175             res = RegCreateKeyExW(iid_key, num_methods_keyname, 0, NULL, 0,
 176                                   KEY_READ | KEY_WRITE, NULL, &key, NULL);
 177             if (res != ERROR_SUCCESS) goto error_close_iid_key;
 178
 179             wsprintfW(buf, fmt, list->num_methods);
 180             res = RegSetValueExW(key, NULL, 0, REG_SZ,
 181                                  (CONST BYTE*)buf,
 182                                  (lstrlenW(buf) + 1) * sizeof(WCHAR));
 183             RegCloseKey(key);
 184
 185             if (res != ERROR_SUCCESS) goto error_close_iid_key;
 186         }
 187
 188         if (list->ps_clsid) {
 189             res = register_key_guid(iid_key, ps_clsid_keyname, list->ps_clsid);
 190             if (res != ERROR_SUCCESS) goto error_close_iid_key;
 191         }
 192
 193         if (list->ps_clsid32) {
 194             res = register_key_guid(iid_key, ps_clsid32_keyname, list->ps_clsid32);
 195             if (res != ERROR_SUCCESS) goto error_close_iid_key;
 196         }
 197
 198     error_close_iid_key:
 199         RegCloseKey(iid_key);
 200     }
 201
 202 error_close_interface_key:
 203     RegCloseKey(interface_key);
 204 error_return:
 205     return res != ERROR_SUCCESS ? HRESULT_FROM_WIN32(res) : S_OK;
 206 }
 207
 208 /***********************************************************************
 209  *              unregister_interfaces
 210  */
 211 static HRESULT unregister_interfaces(struct regsvr_interface const *list) {
 212     LONG res = ERROR_SUCCESS;
 213     HKEY interface_key;
 214
 215     res = RegOpenKeyExW(HKEY_CLASSES_ROOT, interface_keyname, 0,
 216                         KEY_READ | KEY_WRITE, &interface_key);
 217     if (res == ERROR_FILE_NOT_FOUND) return S_OK;
 218     if (res != ERROR_SUCCESS) goto error_return;
 219
 220     for (; res == ERROR_SUCCESS && list->iid; ++list) {
 221         WCHAR buf[39];
 222
 223         StringFromGUID2(list->iid, buf, 39);
 224         res = recursive_delete_keyW(interface_key, buf);
 225     }
 226
 227     RegCloseKey(interface_key);
 228 error_return:
 229     return res != ERROR_SUCCESS ? HRESULT_FROM_WIN32(res) : S_OK;
 230 }
 231
 232 /***********************************************************************
 233  *              register_coclasses
 234  */
 235 static HRESULT register_coclasses(struct regsvr_coclass const *list) {
 236     LONG res = ERROR_SUCCESS;
 237     HKEY coclass_key;
 238
 239     res = RegCreateKeyExW(HKEY_CLASSES_ROOT, clsid_keyname, 0, NULL, 0,
 240                           KEY_READ | KEY_WRITE, NULL, &coclass_key, NULL);
 241     if (res != ERROR_SUCCESS) goto error_return;
 242
 243     for (; res == ERROR_SUCCESS && list->clsid; ++list) {
 244         WCHAR buf[39];
 245         HKEY clsid_key;
 246
 247         StringFromGUID2(list->clsid, buf, 39);
 248         res = RegCreateKeyExW(coclass_key, buf, 0, NULL, 0,
 249                               KEY_READ | KEY_WRITE, NULL, &clsid_key, NULL);
 250         if (res != ERROR_SUCCESS) goto error_close_coclass_key;
 251
 252         if (list->name) {
 253             res = RegSetValueExA(clsid_key, NULL, 0, REG_SZ,
 254                                  (CONST BYTE*)(list->name),
 255                                  strlen(list->name) + 1);
 256             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 257         }
 258
 259         if (list->iph32) {
 260             HKEY iph32_key;
 261
 262             res = RegCreateKeyExW(clsid_key, iph32_keyname, 0, NULL, 0,
 263                                   KEY_READ | KEY_WRITE, NULL,
 264                                   &iph32_key, NULL);
 265             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 266
 267             res = RegSetValueExA(iph32_key, NULL, 0, REG_SZ,
 268                                  (CONST BYTE*)list->iph32,
 269                                  lstrlenA(list->iph32) + 1);
 270             RegCloseKey(iph32_key);
 271             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 272         }
 273
 274         if (list->ips) {
 275             res = register_key_defvalueA(clsid_key, ips_keyname, list->ips);
 276             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 277         }
 278
 279         if (list->ips32) {
 280             HKEY ips32_key;
 281
 282             res = RegCreateKeyExW(clsid_key, ips32_keyname, 0, NULL, 0,
 283                                   KEY_READ | KEY_WRITE, NULL,
 284                                   &ips32_key, NULL);
 285             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 286
 287             res = RegSetValueExA(ips32_key, NULL, 0, REG_SZ,
 288                                  (CONST BYTE*)list->ips32,
 289                                  lstrlenA(list->ips32) + 1);
 290             if (res == ERROR_SUCCESS && list->ips32_tmodel)
 291                 res = RegSetValueExA(ips32_key, tmodel_valuename, 0, REG_SZ,
 292                                      (CONST BYTE*)list->ips32_tmodel,
 293                                      strlen(list->ips32_tmodel) + 1);
 294             RegCloseKey(ips32_key);
 295             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 296         }
 297
 298         if (list->progid) {
 299             res = register_key_defvalueA(clsid_key, progid_keyname,
 300                                          list->progid);
 301             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 302
 303             res = register_progid(list->flags & PROGID_CLSID ? buf : NULL,
 304                                   list->progid, NULL,
 305                                   list->name, list->progid_extra);
 306             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 307         }
 308
 309         if (list->viprogid) {
 310             res = register_key_defvalueA(clsid_key, viprogid_keyname,
 311                                          list->viprogid);
 312             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 313
 314             res = register_progid(list->flags & PROGID_CLSID ? buf : NULL,
 315                                   list->viprogid, list->progid,
 316                                   list->name, list->progid_extra);
 317             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 318         }
 319
 320     error_close_clsid_key:
 321         RegCloseKey(clsid_key);
 322     }
 323
 324 error_close_coclass_key:
 325     RegCloseKey(coclass_key);
 326 error_return:
 327     return res != ERROR_SUCCESS ? HRESULT_FROM_WIN32(res) : S_OK;
 328 }
 329
 330 /***********************************************************************
 331  *              unregister_coclasses
 332  */
 333 static HRESULT unregister_coclasses(struct regsvr_coclass const *list) {
 334     LONG res = ERROR_SUCCESS;
 335     HKEY coclass_key;
 336
 337     res = RegOpenKeyExW(HKEY_CLASSES_ROOT, clsid_keyname, 0,
 338                         KEY_READ | KEY_WRITE, &coclass_key);
 339     if (res == ERROR_FILE_NOT_FOUND) return S_OK;
 340     if (res != ERROR_SUCCESS) goto error_return;
 341
 342     for (; res == ERROR_SUCCESS && list->clsid; ++list) {
 343         WCHAR buf[39];
 344
 345         StringFromGUID2(list->clsid, buf, 39);
 346         res = recursive_delete_keyW(coclass_key, buf);
 347         if (res != ERROR_SUCCESS) goto error_close_coclass_key;
 348
 349         if (list->progid) {
 350             res = recursive_delete_keyA(HKEY_CLASSES_ROOT, list->progid);
 351             if (res != ERROR_SUCCESS) goto error_close_coclass_key;
 352         }
 353
 354         if (list->viprogid) {
 355             res = recursive_delete_keyA(HKEY_CLASSES_ROOT, list->viprogid);
 356             if (res != ERROR_SUCCESS) goto error_close_coclass_key;
 357         }
 358     }
 359
 360 error_close_coclass_key:
 361     RegCloseKey(coclass_key);
 362 error_return:
 363     return res != ERROR_SUCCESS ? HRESULT_FROM_WIN32(res) : S_OK;
 364 }
 365
 366 /***********************************************************************
 367  *              regsvr_key_guid
 368  */
 369 static LONG register_key_guid(HKEY base, WCHAR const *name, GUID const *guid) {
 370     WCHAR buf[39];
 371
 372     StringFromGUID2(guid, buf, 39);
 373     return register_key_defvalueW(base, name, buf);
 374 }
 375
 376 /***********************************************************************
 377  *              regsvr_key_defvalueW
 378  */
 379 static LONG register_key_defvalueW(
 380     HKEY base,
 381     WCHAR const *name,
 382     WCHAR const *value) {
 383     LONG res;
 384     HKEY key;
 385
 386     res = RegCreateKeyExW(base, name, 0, NULL, 0,
 387                           KEY_READ | KEY_WRITE, NULL, &key, NULL);
 388     if (res != ERROR_SUCCESS) return res;
 389     res = RegSetValueExW(key, NULL, 0, REG_SZ, (CONST BYTE*)value,
 390                          (lstrlenW(value) + 1) * sizeof(WCHAR));
 391     RegCloseKey(key);
 392     return res;
 393 }
 394
 395 /***********************************************************************
 396  *              regsvr_key_defvalueA
 397  */
 398 static LONG register_key_defvalueA(
 399     HKEY base,
 400     WCHAR const *name,
 401     char const *value) {
 402     LONG res;
 403     HKEY key;
 404
 405     res = RegCreateKeyExW(base, name, 0, NULL, 0,
 406                           KEY_READ | KEY_WRITE, NULL, &key, NULL);
 407     if (res != ERROR_SUCCESS) return res;
 408     res = RegSetValueExA(key, NULL, 0, REG_SZ, (CONST BYTE*)value,
 409                          lstrlenA(value) + 1);
 410     RegCloseKey(key);
 411     return res;
 412 }
 413
 414 /***********************************************************************
 415  *              regsvr_progid
 416  */
 417 static LONG register_progid(
 418     WCHAR const *clsid,
 419     char const *progid,
 420     char const *curver_progid,
 421     char const *name,
 422     char const *extra) {
 423     LONG res;
 424     HKEY progid_key;
 425
 426     res = RegCreateKeyExA(HKEY_CLASSES_ROOT, progid, 0,
 427                           NULL, 0, KEY_READ | KEY_WRITE, NULL,
 428                           &progid_key, NULL);
 429     if (res != ERROR_SUCCESS) return res;
 430
 431     if (name) {
 432         res = RegSetValueExA(progid_key, NULL, 0, REG_SZ,
 433                              (CONST BYTE*)name, strlen(name) + 1);
 434         if (res != ERROR_SUCCESS) goto error_close_progid_key;
 435     }
 436
 437     if (clsid) {
 438         res = register_key_defvalueW(progid_key, clsid_keyname, clsid);
 439         if (res != ERROR_SUCCESS) goto error_close_progid_key;
 440     }
 441
 442     if (curver_progid) {
 443         res = register_key_defvalueA(progid_key, curver_keyname,
 444                                      curver_progid);
 445         if (res != ERROR_SUCCESS) goto error_close_progid_key;
 446     }
 447
 448     if (extra) {
 449         HKEY extra_key;
 450
 451         res = RegCreateKeyExA(progid_key, extra, 0,
 452                               NULL, 0, KEY_READ | KEY_WRITE, NULL,
 453                               &extra_key, NULL);
 454         if (res == ERROR_SUCCESS)
 455             RegCloseKey(extra_key);
 456     }
 457
 458 error_close_progid_key:
 459     RegCloseKey(progid_key);
 460     return res;
 461 }
 462
 463 /***********************************************************************
 464  *              recursive_delete_key
 465  */
 466 static LONG recursive_delete_key(HKEY key) {
 467     LONG res;
 468     WCHAR subkey_name[MAX_PATH];
 469     DWORD cName;
 470     HKEY subkey;
 471
 472     for (;;) {
 473         cName = sizeof(subkey_name) / sizeof(WCHAR);
 474         res = RegEnumKeyExW(key, 0, subkey_name, &cName,
 475                             NULL, NULL, NULL, NULL);
 476         if (res != ERROR_SUCCESS && res != ERROR_MORE_DATA) {
 477             res = ERROR_SUCCESS; /* presumably we're done enumerating */
 478             break;
 479         }
 480         res = RegOpenKeyExW(key, subkey_name, 0,
 481                             KEY_READ | KEY_WRITE, &subkey);
 482         if (res == ERROR_FILE_NOT_FOUND) continue;
 483         if (res != ERROR_SUCCESS) break;
 484
 485         res = recursive_delete_key(subkey);
 486         RegCloseKey(subkey);
 487         if (res != ERROR_SUCCESS) break;
 488     }
 489
 490     if (res == ERROR_SUCCESS) res = RegDeleteKeyW(key, 0);
 491     return res;
 492 }
 493
 494 /***********************************************************************
 495  *              recursive_delete_keyA
 496  */
 497 static LONG recursive_delete_keyA(HKEY base, char const *name) {
 498     LONG res;
 499     HKEY key;
 500
 501     res = RegOpenKeyExA(base, name, 0, KEY_READ | KEY_WRITE, &key);
 502     if (res == ERROR_FILE_NOT_FOUND) return ERROR_SUCCESS;
 503     if (res != ERROR_SUCCESS) return res;
 504     res = recursive_delete_key(key);
 505     RegCloseKey(key);
 506     return res;
 507 }
 508
 509 /***********************************************************************
 510  *              recursive_delete_keyW
 511  */
 512 static LONG recursive_delete_keyW(HKEY base, WCHAR const *name) {
 513     LONG res;
 514     HKEY key;
 515
 516     res = RegOpenKeyExW(base, name, 0, KEY_READ | KEY_WRITE, &key);
 517     if (res == ERROR_FILE_NOT_FOUND) return ERROR_SUCCESS;
 518     if (res != ERROR_SUCCESS) return res;
 519     res = recursive_delete_key(key);
 520     RegCloseKey(key);
 521     return res;
 522 }
 523
 524 /***********************************************************************
 525  *              coclass list
 526  */
 527 static struct regsvr_coclass const coclass_list[] = {
 528     {
 529         &CLSID_IMsiServer,
 530         "Msi install server",
 531         "ole32.dll",
 532         NULL,
 533         "msi.dll",
 534         "Apartment",
 535         PROGID_CLSID,
 536         "IMsiServer",
 537         NULL
 538     },
 539     {
 540         &CLSID_IMsiServerMessage,
 541         "Wine Installer Message RPC",
 542         NULL,
 543         NULL,
 544         "msi.dll",
 545         NULL,
 546         PROGID_CLSID,
 547         "WindowsInstaller.Message",
 548         NULL
 549     },
 550     {
 551         &CLSID_IMsiServerX1,
 552         "Msi install server",
 553         "ole32.dll",
 554         NULL,
 555         "msi.dll",
 556         "Apartment",
 557         0,
 558         "WindowsInstaller.Installer",
 559         NULL
 560     },
 561     {
 562         &CLSID_IMsiServerX2,
 563         "Msi install server",
 564         "ole32.dll",
 565         NULL,
 566         "msi.dll",
 567         "Apartment",
 568         PROGID_CLSID,
 569         "WindowsInstaller.Installer",
 570         NULL
 571     },
 572     {
 573         &CLSID_IMsiServerX3,
 574         "Msi install server",
 575         "ole32.dll",
 576         NULL,
 577         "msi.dll",
 578         "Apartment",
 579         0,
 580         "WindowsInstaller.Installer",
 581         NULL
 582     },
 583     { NULL }                    /* list terminator */
 584 };
 585
 586 /***********************************************************************
 587  *              interface list
 588  */
 589 /*
 590  * we should declare: (@see ole32/regsvr.c for examples)
 591  [-HKEY_CLASSES_ROOT\Interface\{000C101C-0000-0000-C000-000000000046}]
 592  [-HKEY_CLASSES_ROOT\Interface\{000C101D-0000-0000-C000-000000000046}]
 593  [-HKEY_CLASSES_ROOT\Interface\{000C1025-0000-0000-C000-000000000046}]
 594  [-HKEY_CLASSES_ROOT\Interface\{000C1033-0000-0000-C000-000000000046}]
 595  [-HKEY_CLASSES_ROOT\Interface\{000C1090-0000-0000-C000-000000000046}]
 596  [-HKEY_CLASSES_ROOT\Interface\{000C1093-0000-0000-C000-000000000046}]
 597  [-HKEY_CLASSES_ROOT\Interface\{000C1095-0000-0000-C000-000000000046}]
 598  [-HKEY_CLASSES_ROOT\Interface\{000C109A-0000-0000-C000-000000000046}]
 599  [-HKEY_CLASSES_ROOT\Interface\{000C109B-0000-0000-C000-000000000046}]
 600  [-HKEY_CLASSES_ROOT\Interface\{000C109C-0000-0000-C000-000000000046}]
 601  [-HKEY_CLASSES_ROOT\Interface\{000C109D-0000-0000-C000-000000000046}]
 602  [-HKEY_CLASSES_ROOT\Interface\{000C109E-0000-0000-C000-000000000046}]
 603  [-HKEY_CLASSES_ROOT\Interface\{000C109F-0000-0000-C000-000000000046}]
 604 */
 605 static struct regsvr_interface const interface_list[] = {
 606     { NULL }                    /* list terminator */
 607 };
 608
 609 static HRESULT register_msiexec(void)
 610 {
 611     static const WCHAR key[] = {
 612         'S','o','f','t','w','a','r','e',
 613         '\\','M','i','c','r','o','s','o','f','t',
 614         '\\','W','i','n','d','o','w','s',
 615         '\\','C','u','r','r','e','n','t','V','e','r','s','i','o','n',
 616         '\\','I','n','s','t','a','l','l','e','r',0 };
 617     static const WCHAR val[] = {
 618         'I','n','s','t','a','l','l','e','r','L','o','c','a','t','i','o','n',0 };
 619     WCHAR path[MAX_PATH];
 620     HKEY hkey;
 621     LONG res;
 622     INT len;
 623
 624     len = GetSystemDirectoryW(path, MAX_PATH);
 625     if (!len || len > MAX_PATH)
 626         return E_FAIL;
 627
 628     res = RegCreateKeyExW(HKEY_LOCAL_MACHINE, key, 0,
 629                           NULL, 0, KEY_READ | KEY_WRITE, NULL,
 630                           &hkey, NULL);
 631     if (res != ERROR_SUCCESS)
 632         return E_FAIL;
 633
 634     res = RegSetValueExW(hkey, val, 0, REG_SZ,
 635                          (BYTE*)path, (len + 1)*sizeof(WCHAR));
 636
 637     RegCloseKey(hkey);
 638
 639     return (res == ERROR_SUCCESS) ? S_OK : E_FAIL;
 640 }
 641
 642 /***********************************************************************
 643  *              DllRegisterServer (MSI.@)
 644  */
 645 HRESULT WINAPI DllRegisterServer(void)
 646 {
 647     HRESULT hr;
 648
 649     TRACE("\n");
 650
 651     hr = register_coclasses(coclass_list);
 652     if (SUCCEEDED(hr))
 653         hr = register_interfaces(interface_list);
 654     if (SUCCEEDED(hr))
 655         hr = register_msiexec();
 656     return hr;
 657 }
 658
 659 /***********************************************************************
 660  *              DllUnregisterServer (MSI.@)
 661  */
 662 HRESULT WINAPI DllUnregisterServer(void)
 663 {
 664     HRESULT hr;
 665
 666     TRACE("\n");
 667
 668     hr = unregister_coclasses(coclass_list);
 669     if (SUCCEEDED(hr))
 670         hr = unregister_interfaces(interface_list);
 671     return hr;
 672 }