Hey I just got Windows 7 installed on my computer. I tried to see if SGDK1 still works, and (after trying many compatibility options) sadly it doesn't. the closest i got was running "Chameleon Man" but the only thing that worked was the logo animation (most likely because its a avi file). All other error messages was automation error.
although something weird did happen, whenever i ran it in Win9x mode, it would close whenever i tried to open a file. the same thing in 2K, XP, and Vista modes ran normally. (odd)