Windows for Workgroups 3.1 Beta 1

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

This build calls itself both Winball and Sparta (Sparta! ! !), the codenames of Windows for Workgroups 3.1.

"3.2" references
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.