I just downloaded a copy of the ERT ISO from subsim.com and installled it
yesterday. I'm running Windows 7. I had Danger From The Deep on the laptop but took it off and uninstalled it. ERT totally blows DFTD out of the water!!!
I have Action Stations! Gato, Silent Service 1 and 2, Up Periscope and Wolfpack running on Defend Reloaded. I also have SH1 and CAOD running, both from AW sites. CAOD actually runs under Windows 7 fine. I look for simulations that are generally considered accurate and have scenario editors like SH2 or Wolpack I did buy a copy of Janes i688 Attack Sub too at a used book store! Although ERT has some elements of War Fiction built in, I find it is actually more complete than Danger from the deep. The sounds are better, the gameplay is better and graphics are better too. I
tried a copy of Silent Hunter 2 from a AW site but ended up deleting that too. I put a copy of ERT on a thumb drive for my son to play.
Christopher Tarana