Originating OS Version

This DWORD should hold the kind of operating system in the high word and the version number of the operating system in the low word. Possible values for the operating system are:

Operating System
32-Bit Windows (Win32)
  1. x0001
16-Bit Windows (Win16)

For Windows, the operating system version is the low order word returned by the GetVersion function. On Windows, the following code would correctly set the version of the originating operating system:

#ifdef WIN32

dwOSVer = (DWORD)MAKELONG( LOWORD(GetVersion()), 2 ) ;


dwOSVer = (DWORD)MAKELONG( LOWORD(GetVersion()), 0 ) ;


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