Windows for Workgroups 3.1 Beta 1

Windows for Workgroups 3.1 Beta 1 is the first leaked build of Windows for Workgroups 3.1. It was leaked to BetaArchive by Overdoze on 26 March 2021.

Branding
This build calls itself both Winball and Microsoft Sparta, the codenames of Windows for Workgroups 3.1.