Windows 95 build 28

Cougar build 28 is a fake build of Microsoft Windows, supposedly part of the Cougar project which was said to predate Chicago. The build itself is a modified Windows for Workgroups 3.11, while the Cougar codename was actually used for the 32-bit protected-mode kernel introduced with Chicago and not an entirely separate OS.

According to the NFO file included, it was released by Battler on the Euro-Asian Beta Group in 2008. It can still be found online to this day.