I downloaded this trainer (sc4rushhourtrn1.zip, 128k) from your database. I'm using Trend Micro Internet Security. It's better to have a heretic virus scanner than get infected, hehe. Here's a sample of what popped up while running the cheat.
Link
There was another detection from my Trend Micro, but I forgot what it was and forgot to take a screen shot of it. I just want to be on the safe side, but thanks for your replies.
I think that is the file for the hotkeys. Without that, you can't use the hotkeys of the trainer. It is nothing suspicious with that.