MS-DOS 3.3 OEM Adaption Kit
Windows 2.0 OEM Adaption Kit
Internal Developer Workstation For Windows NT 3.1
Use 7-zip to extract the files even the 'source.exe' is POSIX Utilities and the Windows 3.1 Resource Kit from J. Moore
The GNU Directory is a 93' GNU Archive gnu/mcrsprts/ Ports of GNU software to non-Unix platforms.