MmIsThisAnNtAsSystem function (ntddk.h)
The MmIsThisAnNtAsSystem routine is obsolete for Windows XP and later versions of Windows. Use RtlGetVersion or RtlVerifyVersionInfo instead.
The MmIsThisAnNtAsSystem routine checks whether the current platform is running a server version of the NT-based operating system.
Syntax
BOOLEAN MmIsThisAnNtAsSystem();
Return value
If the current platform is a server, MmIsThisAnNtAsSystem returns TRUE.
Remarks
Drivers can use this routine during initialization, along with MmQuerySystemSize, for sizing estimates of how many resources to allocate. For example, if MmIsThisAnNtAsSystem returns TRUE, the caller can increase the number of threads or the number of initially allocated entries for a lookaside list that it creates in medium and large systems.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Obsolete for Windows XP and later versions of Windows. Use RtlGetVersion or RtlVerifyVersionInfo instead. |
| Target Platform | Universal |
| Header | ntddk.h (include Ntddk.h) |
| Library | NtosKrnl.lib |
| DLL | NtosKrnl.exe |
| IRQL | Any level |