Fyrad 32 ( includes windows 3.1 version )

Archived from groups: alt.comp.freeware,alt.comp.freeware.games (More info?)

http://hem.passagen.se/peters/fyrad/

Fyrad 32 is a freeware version of the classic Connect four game
available for Windows 95/98/NT. Version 2.0 includes several changes
that makes the game even more fun to play. Challenge one of six
built-in computer opponents, where Stupid Joe is the weakest and Super
Pete is the strongest. You can also play against a random opponent at
a random level. Tiered of playing against the computer? Well, Fyrad 32
is network playable, so there's no problem to challenge your friends
in Connect four as long as you're connected to the same network
(Internet or LAN).