Windows for Workgroups 3.1 Beta 1 is the earliest known Windows for Workgroups 3.1 build. It was leaked by BetaWiki Member on 26 March 2021.

"3.2" references[edit | edit source]

WINBALL.SYS in this build has a version number of 3.2.026. It also contains a dialog claiming to identify the build as "Microsoft Windows Sparta v3.2.026 Pre-beta version". Long file name support also appears to be implemented in this driver; there is significantly more code and functions for this support than in later builds

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