Well, I seem to have hit a double-edged sword. As soon as I install the 1.1 patch, I encounter the simengine error. I use the No-CD crack that you provided, and now I encounter a new problem. When I start the game up, it successfully goes through the Microsoft Game Studios intro and the Relic intro and gets to the IC Splash Screen. There, a window pops up simply saying "Please Wait..." and if I let that window stay up, the game crashes. If I close it, the game crashes. I'm using the Windows 7 RC and have essentially the same computer I did the last time I successfully played the game.
I troubleshooted the problem myself, and it IS the 1.1 patch and No-CD crack. I installed the game and ran it immediately after installing, and it works flawlessly. However, as soon as that patch gets installed, the game gets corrupted. I've also tried running IC.exe in every compatibility mode and as an administrator and it still refuses to work.
If anyone has encountered this problem and knows how to fix it, please let me know as I have tried just about everything I can possibly think of to solve it. Thanks.