Operating system versioning
- Clients – Windows 8
- Servers – Windows Server 2012
The internal version number for Windows 8 and Windows Server 2012 is 6.2. All of the versioning APIs will return this version number (GetVersion, GetVersionEx).
The manifestation of this change is app-specific. This means that any app that specifically checks for the operating system version will get a higher version number, which can lead to one or more of these situations:
- App installers might be unable to install the app, and apps might be unable to start
- Apps might become unstable or crash
- Apps might generate error messages, but continue to function properly
Use these VersionLie shims for client apps that rely on a previous version:
- Win7RTMVersionLie (can also be used on server)
Generally, apps should not perform operating system version checks. If an app needs a specific feature, it is preferable to try to find the feature, and fail only if the needed feature is missing. At a minimum, apps should always accept version numbers greater than or equal to the lowest supported version of the operating system. Exceptions should occur only if there is a specific legal, business, or system-component requirement.
- Application Compatibility Toolkit Download
- Known Compatibility Fixes, Compatibility Modes, and AppHelp Messages
Build date: 6/21/2013