dll/win32/shell32/wine/shpolicy.c

   1 /*
   2  * shpolicy.c - Data for shell/system policies.
   3  *
   4  * Copyright 1999 Ian Schmidt <ischmidt@cfl.rr.com>
   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  * NOTES:
  21  *
  22  * Some of these policies can be tweaked via the System Policy
  23  * Editor which came with the Win95 Migration Guide, although
  24  * there doesn't appear to be an updated Win98 version that
  25  * would handle the many new policies introduced since then.
  26  * You could easily write one with the information in
  27  * this file...
  28  *
  29  * Up to date as of SHELL32 v5.00 (W2K)
  30  */
  31
  32 #include <stdarg.h>
  33 #include <stdlib.h>
  34 #include <string.h>
  35
  36 #define WIN32_NO_STATUS
  37 #define _INC_WINDOWS
  38
  39 #include <windef.h>
  40 #include <winbase.h>
  41 #include <shlobj.h>
  42 #include <wine/debug.h>
  43
  44 #include "shell32_main.h"
  45
  46 WINE_DEFAULT_DEBUG_CHANNEL(shell);
  47
  48 #define SHELL_NO_POLICY 0xffffffff
  49
  50 typedef struct tagPOLICYDAT
  51 {
  52   DWORD policy;          /* policy value passed to SHRestricted */
  53   LPCSTR appstr;         /* application str such as "Explorer" */
  54   LPCSTR keystr;         /* name of the actual registry key / policy */
  55   DWORD cache;           /* cached value or 0xffffffff for invalid */
  56 } POLICYDATA, *LPPOLICYDATA;
  57
  58 /* registry strings */
  59 static const CHAR strRegistryPolicyA[] = "Software\\Microsoft\\Windows\\CurrentVersion\\Policies";
  60 static const WCHAR strRegistryPolicyW[] = {'S','o','f','t','w','a','r','e','\\','M','i','c','r','o',
  61                                            's','o','f','t','\\','W','i','n','d','o','w','s','\\',
  62                                            'C','u','r','r','e','n','t','V','e','r','s','i','o','n',
  63                                            '\\','P','o','l','i','c','i','e','s',0};
  64 static const CHAR strPolicyA[] = "Policy";
  65 static const WCHAR strPolicyW[] = {'P','o','l','i','c','y',0};
  66
  67 /* application strings */
  68
  69 static const char strExplorer[] = {"Explorer"};
  70 static const char strActiveDesk[] = {"ActiveDesktop"};
  71 static const char strWinOldApp[] = {"WinOldApp"};
  72 static const char strAddRemoveProgs[] = {"AddRemoveProgs"};
  73
  74 /* key strings */
  75
  76 static const char strNoFileURL[] = {"NoFileUrl"};
  77 static const char strNoFolderOptions[] = {"NoFolderOptions"};
  78 static const char strNoChangeStartMenu[] = {"NoChangeStartMenu"};
  79 static const char strNoWindowsUpdate[] = {"NoWindowsUpdate"};
  80 static const char strNoSetActiveDesktop[] = {"NoSetActiveDesktop"};
  81 static const char strNoForgetSoftwareUpdate[] = {"NoForgetSoftwareUpdate"};
  82 //static const char strNoMSAppLogo[] = {"NoMSAppLogo5ChannelNotify"};
  83 static const char strForceCopyACLW[] = {"ForceCopyACLWithFile"};
  84 static const char strNoResolveTrk[] = {"NoResolveTrack"};
  85 static const char strNoResolveSearch[] = {"NoResolveSearch"};
  86 static const char strNoEditComponent[] = {"NoEditingComponents"};
  87 static const char strNoMovingBand[] = {"NoMovingBands"};
  88 static const char strNoCloseDragDrop[] = {"NoCloseDragDropBands"};
  89 static const char strNoCloseComponent[] = {"NoClosingComponents"};
  90 static const char strNoDelComponent[] = {"NoDeletingComponents"};
  91 static const char strNoAddComponent[] = {"NoAddingComponents"};
  92 static const char strNoComponent[] = {"NoComponents"};
  93 static const char strNoChangeWallpaper[] = {"NoChangingWallpaper"};
  94 static const char strNoHTMLWallpaper[] = {"NoHTMLWallpaper"};
  95 static const char strNoCustomWebView[] = {"NoCustomizeWebView"};
  96 static const char strClassicShell[] = {"ClassicShell"};
  97 static const char strClearRecentDocs[] = {"ClearRecentDocsOnExit"};
  98 static const char strNoFavoritesMenu[] = {"NoFavoritesMenu"};
  99 static const char strNoActiveDesktopChanges[] = {"NoActiveDesktopChanges"};
 100 static const char strNoActiveDesktop[] = {"NoActiveDesktop"};
 101 static const char strNoRecentDocMenu[] = {"NoRecentDocsMenu"};
 102 static const char strNoRecentDocHistory[] = {"NoRecentDocsHistory"};
 103 static const char strNoInetIcon[] = {"NoInternetIcon"};
 104 static const char strNoSettingsWizard[] = {"NoSettingsWizards"};
 105 static const char strNoLogoff[] = {"NoLogoff"};
 106 static const char strNoNetConDis[] = {"NoNetConnectDisconnect"};
 107 static const char strNoViewContextMenu[] = {"NoViewContextMenu"};
 108 static const char strNoTrayContextMenu[] = {"NoTrayContextMenu"};
 109 static const char strNoWebMenu[] = {"NoWebMenu"};
 110 static const char strLnkResolveIgnoreLnkInfo[] = {"LinkResolveIgnoreLinkInfo"};
 111 static const char strNoCommonGroups[] = {"NoCommonGroups"};
 112 static const char strEnforceShlExtSecurity[] = {"EnforceShellExtensionSecurity"};
 113 static const char strNoRealMode[] = {"NoRealMode"};
 114 static const char strMyDocsOnNet[] = {"MyDocsOnNet"};
 115 static const char strNoStartMenuSubfolder[] = {"NoStartMenuSubFolders"};
 116 static const char strNoAddPrinters[] = {"NoAddPrinter"};
 117 static const char strNoDeletePrinters[] = {"NoDeletePrinter"};
 118 static const char strNoPrintTab[] = {"NoPrinterTabs"};
 119 static const char strRestrictRun[] = {"RestrictRun"};
 120 static const char strNoStartBanner[] = {"NoStartBanner"};
 121 static const char strNoNetworkNeighborhood[] = {"NoNetHood"};
 122 static const char strNoDriveTypeAtRun[] = {"NoDriveTypeAutoRun"};
 123 static const char strNoDrivesAutoRun[] = {"NoDriveAutoRun"};
 124 static const char strSeparateProcess[] = {"SeparateProcess"};
 125 static const char strNoDrives[] = {"NoDrives"};
 126 static const char strNoFind[] = {"NoFind"};
 127 static const char strNoDesktop[] = {"NoDesktop"};
 128 static const char strNoSetTaskBar[] = {"NoSetTaskbar"};
 129 static const char strNoSetFld[] = {"NoSetFolders"};
 130 static const char strNoFileMenu[] = {"NoFileMenu"};
 131 static const char strNoSaveSetting[] = {"NoSaveSettings"};
 132 static const char strNoClose[] = {"NoClose"};
 133 static const char strNoRun[] = {"NoRun"};
 134
 135 /* policy data array */
 136 static POLICYDATA sh32_policy_table[] =
 137 {
 138   {
 139     REST_NORUN,
 140     strExplorer,
 141     strNoRun,
 142     SHELL_NO_POLICY
 143   },
 144   {
 145     REST_NOCLOSE,
 146     strExplorer,
 147     strNoClose,
 148     SHELL_NO_POLICY
 149   },
 150   {
 151     REST_NOSAVESET,
 152     strExplorer,
 153     strNoSaveSetting,
 154     SHELL_NO_POLICY
 155   },
 156   {
 157     REST_NOFILEMENU,
 158     strExplorer,
 159     strNoFileMenu,
 160     SHELL_NO_POLICY
 161   },
 162   {
 163     REST_NOSETFOLDERS,
 164     strExplorer,
 165     strNoSetFld,
 166     SHELL_NO_POLICY
 167   },
 168   {
 169     REST_NOSETTASKBAR,
 170     strExplorer,
 171     strNoSetTaskBar,
 172     SHELL_NO_POLICY
 173   },
 174   {
 175     REST_NODESKTOP,
 176     strExplorer,
 177     strNoDesktop,
 178     SHELL_NO_POLICY
 179   },
 180   {
 181     REST_NOFIND,
 182     strExplorer,
 183     strNoFind,
 184     SHELL_NO_POLICY
 185   },
 186   {
 187     REST_NODRIVES,
 188     strExplorer,
 189     strNoDrives,
 190     SHELL_NO_POLICY
 191   },
 192   {
 193     REST_NODRIVEAUTORUN,
 194     strExplorer,
 195     strNoDrivesAutoRun,
 196     SHELL_NO_POLICY
 197   },
 198   {
 199     REST_NODRIVETYPEAUTORUN,
 200     strExplorer,
 201     strNoDriveTypeAtRun,
 202     SHELL_NO_POLICY
 203   },
 204   {
 205     REST_NONETHOOD,
 206     strExplorer,
 207     strNoNetworkNeighborhood,
 208     SHELL_NO_POLICY
 209   },
 210   {
 211     REST_STARTBANNER,
 212     strExplorer,
 213     strNoStartBanner,
 214     SHELL_NO_POLICY
 215   },
 216   {
 217     REST_RESTRICTRUN,
 218     strExplorer,
 219     strRestrictRun,
 220     SHELL_NO_POLICY
 221   },
 222   {
 223     REST_NOPRINTERTABS,
 224     strExplorer,
 225     strNoPrintTab,
 226     SHELL_NO_POLICY
 227   },
 228   {
 229     REST_NOPRINTERDELETE,
 230     strExplorer,
 231     strNoDeletePrinters,
 232     SHELL_NO_POLICY
 233   },
 234   {
 235     REST_NOPRINTERADD,
 236     strExplorer,
 237     strNoAddPrinters,
 238     SHELL_NO_POLICY
 239   },
 240   {
 241     REST_NOSTARTMENUSUBFOLDERS,
 242     strExplorer,
 243     strNoStartMenuSubfolder,
 244     SHELL_NO_POLICY
 245   },
 246   {
 247     REST_MYDOCSONNET,
 248     strExplorer,
 249     strMyDocsOnNet,
 250     SHELL_NO_POLICY
 251   },
 252   {
 253     REST_NOEXITTODOS,
 254     strWinOldApp,
 255     strNoRealMode,
 256     SHELL_NO_POLICY
 257   },
 258   {
 259     REST_ENFORCESHELLEXTSECURITY,
 260     strExplorer,
 261     strEnforceShlExtSecurity,
 262     SHELL_NO_POLICY
 263   },
 264   {
 265     REST_LINKRESOLVEIGNORELINKINFO,
 266     strExplorer,
 267     strLnkResolveIgnoreLnkInfo,
 268     SHELL_NO_POLICY
 269   },
 270   {
 271     REST_NOCOMMONGROUPS,
 272     strExplorer,
 273     strNoCommonGroups,
 274     SHELL_NO_POLICY
 275   },
 276   {
 277     REST_SEPARATEDESKTOPPROCESS,
 278     strExplorer,
 279     strSeparateProcess,
 280     SHELL_NO_POLICY
 281   },
 282   {
 283     REST_NOWEB,
 284     strExplorer,
 285     strNoWebMenu,
 286     SHELL_NO_POLICY
 287   },
 288   {
 289     REST_NOTRAYCONTEXTMENU,
 290     strExplorer,
 291     strNoTrayContextMenu,
 292     SHELL_NO_POLICY
 293   },
 294   {
 295     REST_NOVIEWCONTEXTMENU,
 296     strExplorer,
 297     strNoViewContextMenu,
 298     SHELL_NO_POLICY
 299   },
 300   {
 301     REST_NONETCONNECTDISCONNECT,
 302     strExplorer,
 303     strNoNetConDis,
 304     SHELL_NO_POLICY
 305   },
 306   {
 307     REST_STARTMENULOGOFF,
 308     strExplorer,
 309     strNoLogoff,
 310     SHELL_NO_POLICY
 311   },
 312   {
 313     REST_NOSETTINGSASSIST,
 314     strExplorer,
 315     strNoSettingsWizard,
 316     SHELL_NO_POLICY
 317   },
 318   {
 319     REST_NOINTERNETICON,
 320     strExplorer,
 321     strNoInetIcon,
 322     SHELL_NO_POLICY
 323   },
 324   {
 325     REST_NORECENTDOCSHISTORY,
 326     strExplorer,
 327     strNoRecentDocHistory,
 328     SHELL_NO_POLICY
 329   },
 330   {
 331     REST_NORECENTDOCSMENU,
 332     strExplorer,
 333     strNoRecentDocMenu,
 334     SHELL_NO_POLICY
 335   },
 336   {
 337     REST_NOACTIVEDESKTOP,
 338     strExplorer,
 339     strNoActiveDesktop,
 340     SHELL_NO_POLICY
 341   },
 342   {
 343     REST_NOACTIVEDESKTOPCHANGES,
 344     strExplorer,
 345     strNoActiveDesktopChanges,
 346     SHELL_NO_POLICY
 347   },
 348   {
 349     REST_NOFAVORITESMENU,
 350     strExplorer,
 351     strNoFavoritesMenu,
 352     SHELL_NO_POLICY
 353   },
 354   {
 355     REST_CLEARRECENTDOCSONEXIT,
 356     strExplorer,
 357     strClearRecentDocs,
 358     SHELL_NO_POLICY
 359   },
 360   {
 361     REST_CLASSICSHELL,
 362     strExplorer,
 363     strClassicShell,
 364     SHELL_NO_POLICY
 365   },
 366   {
 367     REST_NOCUSTOMIZEWEBVIEW,
 368     strExplorer,
 369     strNoCustomWebView,
 370     SHELL_NO_POLICY
 371   },
 372   {
 373     REST_NOHTMLWALLPAPER,
 374     strActiveDesk,
 375     strNoHTMLWallpaper,
 376     SHELL_NO_POLICY
 377   },
 378   {
 379     REST_NOCHANGINGWALLPAPER,
 380     strActiveDesk,
 381     strNoChangeWallpaper,
 382     SHELL_NO_POLICY
 383   },
 384   {
 385     REST_NODESKCOMP,
 386     strActiveDesk,
 387     strNoComponent,
 388     SHELL_NO_POLICY
 389   },
 390   {
 391     REST_NOADDDESKCOMP,
 392     strActiveDesk,
 393     strNoAddComponent,
 394     SHELL_NO_POLICY
 395   },
 396   {
 397     REST_NODELDESKCOMP,
 398     strActiveDesk,
 399     strNoDelComponent,
 400     SHELL_NO_POLICY
 401   },
 402   {
 403     REST_NOCLOSEDESKCOMP,
 404     strActiveDesk,
 405     strNoCloseComponent,
 406     SHELL_NO_POLICY
 407   },
 408   {
 409     REST_NOCLOSE_DRAGDROPBAND,
 410     strActiveDesk,
 411     strNoCloseDragDrop,
 412     SHELL_NO_POLICY
 413   },
 414   {
 415     REST_NOMOVINGBAND,
 416     strActiveDesk,
 417     strNoMovingBand,
 418     SHELL_NO_POLICY
 419   },
 420   {
 421     REST_NOEDITDESKCOMP,
 422     strActiveDesk,
 423     strNoEditComponent,
 424     SHELL_NO_POLICY
 425   },
 426   {
 427     REST_NORESOLVESEARCH,
 428     strExplorer,
 429     strNoResolveSearch,
 430     SHELL_NO_POLICY
 431   },
 432   {
 433     REST_NORESOLVETRACK,
 434     strExplorer,
 435     strNoResolveTrk,
 436     SHELL_NO_POLICY
 437   },
 438   {
 439     REST_FORCECOPYACLWITHFILE,
 440     strExplorer,
 441     strForceCopyACLW,
 442     SHELL_NO_POLICY
 443   },
 444 #if (NTDDI_VERSION < NTDDI_LONGHORN)
 445   {
 446     REST_NOLOGO3CHANNELNOTIFY,
 447     strExplorer,
 448     strNoMSAppLogo,
 449     SHELL_NO_POLICY
 450   },
 451 #endif
 452   {
 453     REST_NOFORGETSOFTWAREUPDATE,
 454     strExplorer,
 455     strNoForgetSoftwareUpdate,
 456     SHELL_NO_POLICY
 457   },
 458   {
 459     REST_NOSETACTIVEDESKTOP,
 460     strExplorer,
 461     strNoSetActiveDesktop,
 462     SHELL_NO_POLICY
 463   },
 464   {
 465     REST_NOUPDATEWINDOWS,
 466     strExplorer,
 467     strNoWindowsUpdate,
 468     SHELL_NO_POLICY
 469   },
 470   {
 471     REST_NOCHANGESTARMENU,
 472     strExplorer,
 473     strNoChangeStartMenu,
 474     SHELL_NO_POLICY
 475   },
 476   {
 477     REST_NOFOLDEROPTIONS,
 478     strExplorer,
 479     strNoFolderOptions,
 480     SHELL_NO_POLICY
 481   },
 482   {
 483     REST_HASFINDCOMPUTERS,
 484     strExplorer,
 485     "FindComputers",
 486     SHELL_NO_POLICY
 487   },
 488   {
 489     REST_INTELLIMENUS,
 490     strExplorer,
 491     "IntelliMenus",
 492     SHELL_NO_POLICY
 493   },
 494   {
 495     REST_RUNDLGMEMCHECKBOX,
 496     strExplorer,
 497     "MemCheckBoxInRunDlg",
 498     SHELL_NO_POLICY
 499   },
 500   {
 501     REST_ARP_ShowPostSetup,
 502     strAddRemoveProgs,
 503     "ShowPostSetup",
 504     SHELL_NO_POLICY
 505   },
 506   {
 507     REST_NOCSC,
 508     strExplorer,
 509     "NoSyncAll",
 510     SHELL_NO_POLICY
 511   },
 512   {
 513     REST_NOCONTROLPANEL,
 514     strExplorer,
 515     "NoControlPanel",
 516     SHELL_NO_POLICY
 517   },
 518   {
 519     REST_ENUMWORKGROUP,
 520     strExplorer,
 521     "EnumWorkgroup",
 522     SHELL_NO_POLICY
 523   },
 524   {
 525     REST_ARP_NOARP,
 526     strAddRemoveProgs,
 527     "NoAddRemovePrograms",
 528     SHELL_NO_POLICY
 529   },
 530   {
 531     REST_ARP_NOREMOVEPAGE,
 532     strAddRemoveProgs,
 533     "NoRemovePage",
 534     SHELL_NO_POLICY
 535   },
 536   {
 537     REST_ARP_NOADDPAGE,
 538     strAddRemoveProgs,
 539     "NoAddPage",
 540     SHELL_NO_POLICY
 541   },
 542   {
 543     REST_ARP_NOWINSETUPPAGE,
 544     strAddRemoveProgs,
 545     "NoWindowsSetupPage",
 546     SHELL_NO_POLICY
 547   },
 548   {
 549     REST_GREYMSIADS,
 550     strExplorer,
 551     "",
 552     SHELL_NO_POLICY
 553   },
 554   {
 555     REST_NOCHANGEMAPPEDDRIVELABEL,
 556     strExplorer,
 557     "NoChangeMappedDriveLabel",
 558     SHELL_NO_POLICY
 559   },
 560   {
 561     REST_NOCHANGEMAPPEDDRIVECOMMENT,
 562     strExplorer,
 563     "NoChangeMappedDriveComment",
 564     SHELL_NO_POLICY
 565   },
 566   {
 567     REST_MaxRecentDocs,
 568     strExplorer,
 569     "MaxRecentDocs",
 570     SHELL_NO_POLICY
 571   },
 572   {
 573     REST_NONETWORKCONNECTIONS,
 574     strExplorer,
 575     "NoNetworkConnections",
 576     SHELL_NO_POLICY
 577   },
 578   {
 579     REST_FORCESTARTMENULOGOFF,
 580     strExplorer,
 581     "ForceStartMenuLogoff",
 582     SHELL_NO_POLICY
 583   },
 584   {
 585     REST_NOWEBVIEW,
 586     strExplorer,
 587      "NoWebView",
 588     SHELL_NO_POLICY
 589   },
 590   {
 591     REST_NOCUSTOMIZETHISFOLDER,
 592     strExplorer,
 593     "NoCustomizeThisFolder",
 594     SHELL_NO_POLICY
 595   },
 596   {
 597     REST_NOENCRYPTION,
 598     strExplorer,
 599     "NoEncryption",
 600     SHELL_NO_POLICY
 601   },
 602   {
 603     REST_ALLOWFRENCHENCRYPTION,
 604     strExplorer,
 605     "AllowFrenchEncryption",
 606     SHELL_NO_POLICY
 607   },
 608   {
 609     REST_DONTSHOWSUPERHIDDEN,
 610     strExplorer,
 611     "DontShowSuperHidden",
 612     SHELL_NO_POLICY
 613   },
 614   {
 615     REST_NOSHELLSEARCHBUTTON,
 616     strExplorer,
 617     "NoShellSearchButton",
 618     SHELL_NO_POLICY
 619   },
 620   {
 621     REST_NOHARDWARETAB,
 622     strExplorer,
 623     "NoHardwareTab",
 624     SHELL_NO_POLICY
 625   },
 626   {
 627     REST_NORUNASINSTALLPROMPT,
 628     strExplorer,
 629     "NoRunasInstallPrompt",
 630     SHELL_NO_POLICY
 631   },
 632   {
 633     REST_PROMPTRUNASINSTALLNETPATH,
 634     strExplorer,
 635     "PromptRunasInstallNetPath",
 636     SHELL_NO_POLICY
 637   },
 638   {
 639     REST_NOMANAGEMYCOMPUTERVERB,
 640     strExplorer,
 641     "NoManageMyComputerVerb",
 642     SHELL_NO_POLICY
 643   },
 644   {
 645     REST_NORECENTDOCSNETHOOD,
 646     strExplorer,
 647     "NoRecentDocsNetHood",
 648     SHELL_NO_POLICY
 649   },
 650   {
 651     REST_DISALLOWRUN,
 652     strExplorer,
 653     "DisallowRun",
 654     SHELL_NO_POLICY
 655   },
 656   {
 657     REST_NOWELCOMESCREEN,
 658     strExplorer,
 659     "NoWelcomeScreen",
 660     SHELL_NO_POLICY
 661   },
 662   {
 663     REST_RESTRICTCPL,
 664     strExplorer,
 665     "RestrictCpl",
 666     SHELL_NO_POLICY
 667   },
 668   {
 669     REST_DISALLOWCPL,
 670     strExplorer,
 671     "DisallowCpl",
 672     SHELL_NO_POLICY
 673   },
 674   {
 675     REST_NOSMBALLOONTIP,
 676     strExplorer,
 677     "NoSMBalloonTip",
 678     SHELL_NO_POLICY
 679   },
 680   {
 681     REST_NOSMHELP,
 682     strExplorer,
 683     "NoSMHelp",
 684     SHELL_NO_POLICY
 685   },
 686   {
 687     REST_NOWINKEYS,
 688     strExplorer,
 689     "NoWinKeys",
 690     SHELL_NO_POLICY
 691   },
 692   {
 693     REST_NOENCRYPTONMOVE,
 694     strExplorer,
 695     "NoEncryptOnMove",
 696     SHELL_NO_POLICY
 697   },
 698   {
 699     REST_NOLOCALMACHINERUN,
 700     strExplorer,
 701     "DisableLocalMachineRun",
 702     SHELL_NO_POLICY
 703   },
 704   {
 705     REST_NOCURRENTUSERRUN,
 706     strExplorer,
 707     "DisableCurrentUserRun",
 708     SHELL_NO_POLICY
 709   },
 710   {
 711     REST_NOLOCALMACHINERUNONCE,
 712     strExplorer,
 713     "DisableLocalMachineRunOnce",
 714     SHELL_NO_POLICY
 715   },
 716   {
 717     REST_NOCURRENTUSERRUNONCE,
 718     strExplorer,
 719     "DisableCurrentUserRunOnce",
 720     SHELL_NO_POLICY
 721   },
 722   {
 723     REST_FORCEACTIVEDESKTOPON,
 724     strExplorer,
 725     "ForceActiveDesktopOn",
 726     SHELL_NO_POLICY
 727   },
 728   {
 729     REST_NOCOMPUTERSNEARME,
 730     strExplorer,
 731     "NoComputersNearMe",
 732     SHELL_NO_POLICY
 733   },
 734   {
 735     REST_NOVIEWONDRIVE,
 736     strExplorer,
 737     "NoViewOnDrive",
 738     SHELL_NO_POLICY
 739   },
 740   {
 741     REST_NONETCRAWL,
 742     strExplorer,
 743     "NoNetCrawl",
 744     SHELL_NO_POLICY
 745   },
 746   {
 747     REST_NOSHAREDDOCUMENTS,
 748     strExplorer,
 749     "NoSharedDocs",
 750     SHELL_NO_POLICY
 751   },
 752   {
 753     REST_NOSMMYDOCS,
 754     strExplorer,
 755     "NoSMMyDocs",
 756     SHELL_NO_POLICY
 757   },
 758 /* 0x4000050 - 0x4000060 */
 759   {
 760     REST_NONLEGACYSHELLMODE,
 761     strExplorer,
 762     "NoneLegacyShellMode",
 763     SHELL_NO_POLICY
 764   },
 765   {
 766     REST_STARTRUNNOHOMEPATH,
 767     strExplorer,
 768     "StartRunNoHOMEPATH",
 769     SHELL_NO_POLICY
 770   },
 771 /* 0x4000061 - 0x4000086 */
 772   {
 773     REST_NODISCONNECT,
 774     strExplorer,
 775     "NoDisconnect",
 776     SHELL_NO_POLICY
 777   },
 778   {
 779     REST_NOSECURITY,
 780     strExplorer,
 781     "NoNTSecurity",
 782     SHELL_NO_POLICY
 783   },
 784   {
 785     REST_NOFILEASSOCIATE,
 786     strExplorer,
 787     "NoFileAssociate",
 788     SHELL_NO_POLICY
 789   },
 790   {
 791     0x50000024,
 792     strExplorer,
 793     strNoFileURL,
 794     SHELL_NO_POLICY
 795   },
 796   {
 797     0,
 798     0,
 799     0,
 800     SHELL_NO_POLICY
 801   }
 802 };
 803
 804 /*************************************************************************
 805  * SHRestricted                          [SHELL32.100]
 806  *
 807  * Get the value associated with a policy Id.
 808  *
 809  * PARAMS
 810  *     pol [I] Policy Id
 811  *
 812  * RETURNS
 813  *     The queried value for the policy.
 814  *
 815  * NOTES
 816  *     Exported by ordinal.
 817  *     This function caches the retrieved values to prevent unnecessary registry access,
 818  *     if SHInitRestricted() was previously called.
 819  *
 820  * REFERENCES
 821  *     a: MS System Policy Editor.
 822  *     b: 98Lite 2.0 (which uses many of these policy keys) http://www.98lite.net/
 823  *     c: 'The Windows 95 Registry', by John Woram, 1996 MIS: Press
 824  */
 825 DWORD WINAPI SHRestricted (RESTRICTIONS policy)
 826 {
 827         char regstr[256];
 828         HKEY    xhkey;
 829         DWORD   retval, datsize = 4;
 830         LPPOLICYDATA p;
 831
 832         TRACE("(%08x)\n", policy);
 833
 834         /* scan to see if we know this policy ID */
 835         for (p = sh32_policy_table; p->policy; p++)
 836         {
 837           if (policy == p->policy)
 838           {
 839             break;
 840           }
 841         }
 842
 843         if (p->policy == 0)
 844         {
 845             /* we don't know this policy, return 0 */
 846             TRACE("unknown policy: (%08x)\n", policy);
 847                 return 0;
 848         }
 849
 850         /* we have a known policy */
 851
 852         /* first check if this policy has been cached, return it if so */
 853         if (p->cache != SHELL_NO_POLICY)
 854         {
 855             return p->cache;
 856         }
 857
 858         lstrcpyA(regstr, strRegistryPolicyA);
 859         lstrcatA(regstr, p->appstr);
 860
 861         /* return 0 and don't set the cache if any registry errors occur */
 862         retval = 0;
 863         if (RegOpenKeyA(HKEY_CURRENT_USER, regstr, &xhkey) == ERROR_SUCCESS)
 864         {
 865           if (RegQueryValueExA(xhkey, p->keystr, NULL, NULL, (LPBYTE)&retval, &datsize) == ERROR_SUCCESS)
 866           {
 867             p->cache = retval;
 868           }
 869           RegCloseKey(xhkey);
 870         }
 871         return retval;
 872 }
 873
 874 /*************************************************************************
 875  * SHInitRestricted          [SHELL32.244]
 876  *
 877  * Initialise the policy cache to speed up calls to SHRestricted().
 878  *
 879  * PARAMS
 880  *  unused    [I] Reserved.
 881  *  inpRegKey [I] Registry key to scan.
 882  *
 883  * RETURNS
 884  *  Success: -1. The policy cache is initialised.
 885  *  Failure: 0, if inpRegKey is any value other than NULL, "Policy", or
 886  *           "Software\Microsoft\Windows\CurrentVersion\Policies".
 887  *
 888  * NOTES
 889  *  Exported by ordinal. Introduced in Win98.
 890  */
 891 BOOL WINAPI SHInitRestricted(LPCVOID unused, LPCVOID inpRegKey)
 892 {
 893         TRACE("(%p, %p)\n", unused, inpRegKey);
 894
 895         /* first check - if input is non-NULL and points to the secret
 896            key string, then pass. Otherwise return 0.
 897          */
 898         if (inpRegKey != NULL)
 899         {
 900           if (SHELL_OsIsUnicode())
 901           {
 902             if (lstrcmpiW(inpRegKey, strRegistryPolicyW) &&
 903                 lstrcmpiW(inpRegKey, strPolicyW))
 904               /* doesn't match, fail */
 905               return FALSE;
 906           }
 907           else
 908           {
 909             if (lstrcmpiA(inpRegKey, strRegistryPolicyA) &&
 910                 lstrcmpiA(inpRegKey, strPolicyA))
 911               /* doesn't match, fail */
 912               return FALSE;
 913           }
 914         }
 915
 916         return TRUE;
 917 }