I just bought the 3-pack and loaded it up. Sub Command works fine, but has the usual NVIDIA hiccup of DW. It is dealt with the same way. 688i does not like Windows 7, even in compatibility mode. It crashes on beginning a mission. Fleet Command is extremely ornery and obstinate in Win7. The flashing screen issue, the NVIDIA hiccup and other issues make this difficult, if not impossible to play.
Consequentially, I loaded the games on my old WinXP laptop with a weak integrated ATI Radeon chip in it. All three games ran just fine with no other tweeks.