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Only a couple of the valid uninstall values are documented on MSDN [1], some of them also have a Windows Installer property and have MSI specific documentation [2], and other values like DisplayIcon have no official documentation at all!
| Name=Default | Reg. Type | Min. OS | Format | Notes |
|---|---|---|---|---|
| AuthorizedCDFPrefix | SZ | IE 4.01 | | Whitelist of one or more URLs for Software Update Channel [5]. “http:” means any host over http. |
| Comments | SZ | 2000 | ||
| Contact | SZ | 2000 | ||
| DisplayIcon=Auto | SZ | 2000 | ["]%path%["][,<-%ResId% | %ResIndex%>] |
|
| DisplayName | SZ | * | Required by ARP.GUI [7] | |
| DisplayVersion | SZ | 2000 | %major%.%minor%.%build%[.%revision%] | Usually string version of Version |
| EstimatedSize | DWORD | 2000 | %SizeInKiB% | Win7+ does not display the size information without this value [4] |
| HelpLink | SZ | 2000 | | |
| HelpTelephone | SZ | 2000 | %PhoneNumber% | |
| Installed | DWORD | |||
| InstallDate | SZ | 2000 | %YYYYMMDD% | Last time a patch was applied or removed from the product or the product was installed/repaired [2][8] |
| InstallLocation | SZ, EXPAND_SZ | 2000 | %fullpath\to\folder% | ARPINSTALLLOCATION: Full path to the application’s primary folder |
| InstallSource | SZ | 2000 | %fullpath\to\folder% | |
| Language | DWORD | MSI? | %WIN32:LANGID% | |
| ModifyPath | SZ, EXPAND_SZ | *? | "%path%" [parameters] | |
| NoModify=0 | DWORD | 2000 | Prevents display of a Change button for the product in ARP [6] | |
| NoRemove=0 | DWORD | 2000 | This only affects the display in ARP | |
| NoRepair=0 | DWORD | 2000 | If NoModify=1 and NoRepair=0, ARP will display a repair button | |
| ParentDisplayName | SZ | XP:SP2, 2003 | [8] Name of parent tree item | |
| ParentKeyName | SZ | XP:SP2, 2003 | [8] Parents sibling subkey or key under SOFTWARE\Microsoft\Updates? “OperatingSystem” seems to be a special value. Reserved key names: IEUpdate, OEUpdate, KB######, Q######, and ###### | |
| ProductID | SZ | 2000 | String displayed in ARP | |
| Publisher | SZ | 2000 | Publisher/Developer of application, links to UrlInfoAbout | |
| QuietUninstallString | SZ, EXPAND_SZ? | * | "%path%" [parameters] | |
| Readme | SZ | 2000 | <%fullpath\to\readme.txt% | ; | |
| RegOwner | SZ | 2000 | ||
| RegCompany | SZ | 2000 | ||
| ReleaseType | SZ? | XP? | ["Hotfix" | "Security Update" | "Software Update"] | |
| RequiresIESysFile | SZ | IE 4.0? | %IEMajor%.%IEMinor%[.%IEBuild%%[.%IERevision%]] | If IE is downgraded to a version lower than RequiresIESysFile, perform QuietUninstallString? |
| HelpTelephone | SZ | 2000 | ||
| Size | SZ? | MSI? | ||
| SystemComponent | DWORD | XP? | ||
| TSAware | DWORD | XP? | ||
| UninstallString | SZ, EXPAND_SZ | * | "%path%" [parameters] | Required by ARP.GUI [7] |
| UrlInfoAbout | SZ | 2000 | | |
| UrlUpdateInfo | SZ | 2000 | | |
| Version | DWORD | MSI? | 0xMMmmBBBB | major.minor.build in packed form |
| VersionMajor | DWORD | MSI? | ||
| VersionMinor | DWORD | MSI? | ||
| WindowsInstaller | DWORD | MSI? | %BOOL:IsMSI% |
Notes
- NT4+ supports entries under HKCU, Win9x only supports HKLM
- UninstallPath is documented on the Win 2000 Application Specifications page, it is probably a typo and they really mean UninstallString.
- The %AppName% subkey under …\Uninstall\ is also known as the “Microsoft Application Logo 5 name”
- AppName subkeys matching “KB??????” seem to get special handling
- “No*” values under HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\%AppName% override the normal settings under HKCU\…\Uninstall\%AppName%
- All “text” values also support versions