dlls/shell32/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 #include "windef.h"
  37 #include "winbase.h"
  38 #include "winerror.h"
  39 #include "winreg.h"
  40
  41 #include "shell32_main.h"
  42 #include "shlobj.h"
  43
  44 #include "wine/debug.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   {
 445     REST_NOLOGO3CHANNELNOTIFY,
 446     strExplorer,
 447     strNoMSAppLogo,
 448     SHELL_NO_POLICY
 449   },
 450   {
 451     REST_NOFORGETSOFTWAREUPDATE,
 452     strExplorer,
 453     strNoForgetSoftwareUpdate,
 454     SHELL_NO_POLICY
 455   },
 456   {
 457     REST_NOSETACTIVEDESKTOP,
 458     strExplorer,
 459     strNoSetActiveDesktop,
 460     SHELL_NO_POLICY
 461   },
 462   {
 463     REST_NOUPDATEWINDOWS,
 464     strExplorer,
 465     strNoWindowsUpdate,
 466     SHELL_NO_POLICY
 467   },
 468   {
 469     REST_NOCHANGESTARMENU,
 470     strExplorer,
 471     strNoChangeStartMenu,
 472     SHELL_NO_POLICY
 473   },
 474   {
 475     REST_NOFOLDEROPTIONS,
 476     strExplorer,
 477     strNoFolderOptions,
 478     SHELL_NO_POLICY
 479   },
 480   {
 481     REST_HASFINDCOMPUTERS,
 482     strExplorer,
 483     "FindComputers",
 484     SHELL_NO_POLICY
 485   },
 486   {
 487     REST_INTELLIMENUS,
 488     strExplorer,
 489     "IntelliMenus",
 490     SHELL_NO_POLICY
 491   },
 492   {
 493     REST_RUNDLGMEMCHECKBOX,
 494     strExplorer,
 495     "MemCheckBoxInRunDlg",
 496     SHELL_NO_POLICY
 497   },
 498   {
 499     REST_ARP_ShowPostSetup,
 500     strAddRemoveProgs,
 501     "ShowPostSetup",
 502     SHELL_NO_POLICY
 503   },
 504   {
 505     REST_NOCSC,
 506     strExplorer,
 507     "NoSyncAll",
 508     SHELL_NO_POLICY
 509   },
 510   {
 511     REST_NOCONTROLPANEL,
 512     strExplorer,
 513     "NoControlPanel",
 514     SHELL_NO_POLICY
 515   },
 516   {
 517     REST_ENUMWORKGROUP,
 518     strExplorer,
 519     "EnumWorkgroup",
 520     SHELL_NO_POLICY
 521   },
 522   {
 523     REST_ARP_NOARP,
 524     strAddRemoveProgs,
 525     "NoAddRemovePrograms",
 526     SHELL_NO_POLICY
 527   },
 528   {
 529     REST_ARP_NOREMOVEPAGE,
 530     strAddRemoveProgs,
 531     "NoRemovePage",
 532     SHELL_NO_POLICY
 533   },
 534   {
 535     REST_ARP_NOADDPAGE,
 536     strAddRemoveProgs,
 537     "NoAddPage",
 538     SHELL_NO_POLICY
 539   },
 540   {
 541     REST_ARP_NOWINSETUPPAGE,
 542     strAddRemoveProgs,
 543     "NoWindowsSetupPage",
 544     SHELL_NO_POLICY
 545   },
 546   {
 547     REST_GREYMSIADS,
 548     strExplorer,
 549     "",
 550     SHELL_NO_POLICY
 551   },
 552   {
 553     REST_NOCHANGEMAPPEDDRIVELABEL,
 554     strExplorer,
 555     "NoChangeMappedDriveLabel",
 556     SHELL_NO_POLICY
 557   },
 558   {
 559     REST_NOCHANGEMAPPEDDRIVECOMMENT,
 560     strExplorer,
 561     "NoChangeMappedDriveComment",
 562     SHELL_NO_POLICY
 563   },
 564   {
 565     REST_MaxRecentDocs,
 566     strExplorer,
 567     "MaxRecentDocs",
 568     SHELL_NO_POLICY
 569   },
 570   {
 571     REST_NONETWORKCONNECTIONS,
 572     strExplorer,
 573     "NoNetworkConnections",
 574     SHELL_NO_POLICY
 575   },
 576   {
 577     REST_FORCESTARTMENULOGOFF,
 578     strExplorer,
 579     "ForceStartMenuLogoff",
 580     SHELL_NO_POLICY
 581   },
 582   {
 583     REST_NOWEBVIEW,
 584     strExplorer,
 585      "NoWebView",
 586     SHELL_NO_POLICY
 587   },
 588   {
 589     REST_NOCUSTOMIZETHISFOLDER,
 590     strExplorer,
 591     "NoCustomizeThisFolder",
 592     SHELL_NO_POLICY
 593   },
 594   {
 595     REST_NOENCRYPTION,
 596     strExplorer,
 597     "NoEncryption",
 598     SHELL_NO_POLICY
 599   },
 600   {
 601     REST_ALLOWFRENCHENCRYPTION,
 602     strExplorer,
 603     "AllowFrenchEncryption",
 604     SHELL_NO_POLICY
 605   },
 606   {
 607     REST_DONTSHOWSUPERHIDDEN,
 608     strExplorer,
 609     "DontShowSuperHidden",
 610     SHELL_NO_POLICY
 611   },
 612   {
 613     REST_NOSHELLSEARCHBUTTON,
 614     strExplorer,
 615     "NoShellSearchButton",
 616     SHELL_NO_POLICY
 617   },
 618   {
 619     REST_NOHARDWARETAB,
 620     strExplorer,
 621     "NoHardwareTab",
 622     SHELL_NO_POLICY
 623   },
 624   {
 625     REST_NORUNASINSTALLPROMPT,
 626     strExplorer,
 627     "NoRunasInstallPrompt",
 628     SHELL_NO_POLICY
 629   },
 630   {
 631     REST_PROMPTRUNASINSTALLNETPATH,
 632     strExplorer,
 633     "PromptRunasInstallNetPath",
 634     SHELL_NO_POLICY
 635   },
 636   {
 637     REST_NOMANAGEMYCOMPUTERVERB,
 638     strExplorer,
 639     "NoManageMyComputerVerb",
 640     SHELL_NO_POLICY
 641   },
 642   {
 643     REST_NORECENTDOCSNETHOOD,
 644     strExplorer,
 645     "NoRecentDocsNetHood",
 646     SHELL_NO_POLICY
 647   },
 648   {
 649     REST_DISALLOWRUN,
 650     strExplorer,
 651     "DisallowRun",
 652     SHELL_NO_POLICY
 653   },
 654   {
 655     REST_NOWELCOMESCREEN,
 656     strExplorer,
 657     "NoWelcomeScreen",
 658     SHELL_NO_POLICY
 659   },
 660   {
 661     REST_RESTRICTCPL,
 662     strExplorer,
 663     "RestrictCpl",
 664     SHELL_NO_POLICY
 665   },
 666   {
 667     REST_DISALLOWCPL,
 668     strExplorer,
 669     "DisallowCpl",
 670     SHELL_NO_POLICY
 671   },
 672   {
 673     REST_NOSMBALLOONTIP,
 674     strExplorer,
 675     "NoSMBalloonTip",
 676     SHELL_NO_POLICY
 677   },
 678   {
 679     REST_NOSMHELP,
 680     strExplorer,
 681     "NoSMHelp",
 682     SHELL_NO_POLICY
 683   },
 684   {
 685     REST_NOWINKEYS,
 686     strExplorer,
 687     "NoWinKeys",
 688     SHELL_NO_POLICY
 689   },
 690   {
 691     REST_NOENCRYPTONMOVE,
 692     strExplorer,
 693     "NoEncryptOnMove",
 694     SHELL_NO_POLICY
 695   },
 696   {
 697     REST_NOLOCALMACHINERUN,
 698     strExplorer,
 699     "DisableLocalMachineRun",
 700     SHELL_NO_POLICY
 701   },
 702   {
 703     REST_NOCURRENTUSERRUN,
 704     strExplorer,
 705     "DisableCurrentUserRun",
 706     SHELL_NO_POLICY
 707   },
 708   {
 709     REST_NOLOCALMACHINERUNONCE,
 710     strExplorer,
 711     "DisableLocalMachineRunOnce",
 712     SHELL_NO_POLICY
 713   },
 714   {
 715     REST_NOCURRENTUSERRUNONCE,
 716     strExplorer,
 717     "DisableCurrentUserRunOnce",
 718     SHELL_NO_POLICY
 719   },
 720   {
 721     REST_FORCEACTIVEDESKTOPON,
 722     strExplorer,
 723     "ForceActiveDesktopOn",
 724     SHELL_NO_POLICY
 725   },
 726   {
 727     REST_NOCOMPUTERSNEARME,
 728     strExplorer,
 729     "NoComputersNearMe",
 730     SHELL_NO_POLICY
 731   },
 732   {
 733     REST_NOVIEWONDRIVE,
 734     strExplorer,
 735     "NoViewOnDrive",
 736     SHELL_NO_POLICY
 737   },
 738   {
 739     REST_NONETCRAWL,
 740     strExplorer,
 741     "NoNetCrawl",
 742     SHELL_NO_POLICY
 743   },
 744   {
 745     REST_NOSHAREDDOCUMENTS,
 746     strExplorer,
 747     "NoSharedDocs",
 748     SHELL_NO_POLICY
 749   },
 750   {
 751     REST_NOSMMYDOCS,
 752     strExplorer,
 753     "NoSMMyDocs",
 754     SHELL_NO_POLICY
 755   },
 756 /* 0x4000050 - 0x4000060 */
 757   {
 758     REST_NONLEGACYSHELLMODE,
 759     strExplorer,
 760     "NoneLegacyShellMode",
 761     SHELL_NO_POLICY
 762   },
 763   {
 764     REST_STARTRUNNOHOMEPATH,
 765     strExplorer,
 766     "StartRunNoHOMEPATH",
 767     SHELL_NO_POLICY
 768   },
 769 /* 0x4000061 - 0x4000086 */
 770   {
 771     REST_NODISCONNECT,
 772     strExplorer,
 773     "NoDisconnect",
 774     SHELL_NO_POLICY
 775   },
 776   {
 777     REST_NOSECURITY,
 778     strExplorer,
 779     "NoNTSecurity",
 780     SHELL_NO_POLICY
 781   },
 782   {
 783     REST_NOFILEASSOCIATE,
 784     strExplorer,
 785     "NoFileAssociate",
 786     SHELL_NO_POLICY
 787   },
 788   {
 789     0x50000024,
 790     strExplorer,
 791     strNoFileURL,
 792     SHELL_NO_POLICY
 793   },
 794   {
 795     0,
 796     0,
 797     0,
 798     SHELL_NO_POLICY
 799   }
 800 };
 801
 802 /*************************************************************************
 803  * SHRestricted                          [SHELL32.100]
 804  *
 805  * Get the value associated with a policy Id.
 806  *
 807  * PARAMS
 808  *     pol [I] Policy Id
 809  *
 810  * RETURNS
 811  *     The queried value for the policy.
 812  *
 813  * NOTES
 814  *     Exported by ordinal.
 815  *     This function caches the retrieved values to prevent unnecessary registry access,
 816  *     if SHInitRestricted() was previously called.
 817  *
 818  * REFERENCES
 819  *     a: MS System Policy Editor.
 820  *     b: 98Lite 2.0 (which uses many of these policy keys) http://www.98lite.net/
 821  *     c: 'The Windows 95 Registry', by John Woram, 1996 MIS: Press
 822  */
 823 DWORD WINAPI SHRestricted (RESTRICTIONS policy)
 824 {
 825         char regstr[256];
 826         HKEY    xhkey;
 827         DWORD   retval, datsize = 4;
 828         LPPOLICYDATA p;
 829
 830         TRACE("(%08x)\n", policy);
 831
 832         /* scan to see if we know this policy ID */
 833         for (p = sh32_policy_table; p->policy; p++)
 834         {
 835           if (policy == p->policy)
 836           {
 837             break;
 838           }
 839         }
 840
 841         if (p->policy == 0)
 842         {
 843             /* we don't know this policy, return 0 */
 844             TRACE("unknown policy: (%08x)\n", policy);
 845                 return 0;
 846         }
 847
 848         /* we have a known policy */
 849
 850         /* first check if this policy has been cached, return it if so */
 851         if (p->cache != SHELL_NO_POLICY)
 852         {
 853             return p->cache;
 854         }
 855
 856         lstrcpyA(regstr, strRegistryPolicyA);
 857         lstrcatA(regstr, p->appstr);
 858
 859         /* return 0 and don't set the cache if any registry errors occur */
 860         retval = 0;
 861         if (RegOpenKeyA(HKEY_CURRENT_USER, regstr, &xhkey) == ERROR_SUCCESS)
 862         {
 863           if (RegQueryValueExA(xhkey, p->keystr, NULL, NULL, (LPBYTE)&retval, &datsize) == ERROR_SUCCESS)
 864           {
 865             p->cache = retval;
 866           }
 867           RegCloseKey(xhkey);
 868         }
 869         return retval;
 870 }
 871
 872 /*************************************************************************
 873  * SHInitRestricted          [SHELL32.244]
 874  *
 875  * Initialise the policy cache to speed up calls to SHRestricted().
 876  *
 877  * PARAMS
 878  *  unused    [I] Reserved.
 879  *  inpRegKey [I] Registry key to scan.
 880  *
 881  * RETURNS
 882  *  Success: -1. The policy cache is initialised.
 883  *  Failure: 0, if inpRegKey is any value other than NULL, "Policy", or
 884  *           "Software\Microsoft\Windows\CurrentVersion\Policies".
 885  *
 886  * NOTES
 887  *  Exported by ordinal. Introduced in Win98.
 888  */
 889 BOOL WINAPI SHInitRestricted(LPCVOID unused, LPCVOID inpRegKey)
 890 {
 891         TRACE("(%p, %p)\n", unused, inpRegKey);
 892
 893         /* first check - if input is non-NULL and points to the secret
 894            key string, then pass. Otherwise return 0.
 895          */
 896         if (inpRegKey != NULL)
 897         {
 898           if (SHELL_OsIsUnicode())
 899           {
 900             if (lstrcmpiW(inpRegKey, strRegistryPolicyW) &&
 901                 lstrcmpiW(inpRegKey, strPolicyW))
 902               /* doesn't match, fail */
 903               return 0;
 904           }
 905           else
 906           {
 907             if (lstrcmpiA(inpRegKey, strRegistryPolicyA) &&
 908                 lstrcmpiA(inpRegKey, strPolicyA))
 909               /* doesn't match, fail */
 910               return 0;
 911           }
 912         }
 913
 914         return TRUE;
 915 }