HKLM\SYSTEM\CurrentControlSet\Control\ProductOptions

This key identifies the version of Windows installed. It's values can be:

  • WinNT - Windows 7 & Vista /li>
  • LanmanNT - 2008 & 2008 R2 Domain Controller
  • ServerNT - 2008 & 2008 R2 Server
This key's value is written to the system variable MmProductType which can be queried by the kernel mode support function MmIsThisAnNtAsSystem. User mode applications can query the Windows version via theVerifyVersionInfo function. Kernel-mode drivers use the RtlGetVersion function.

CI Data

Platform:Windows
Category:OS - Registry Value
Target Functionality:Licensing
Accessed by:
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