Tried installing Microcat when I was testing Win7 RC 64bit, but it didn't let me. I was confined to use it on my gf's laptop under XP (which she hated..). Now that I'm on Win7 RTM 64bit, it runs fine under XP Mode.rrtoadhall said:I am on 64 bit. Apologies for not including that. ANy way, 32 bit programs should run just fine on a 64 bit system as it is mostly backwards compatible. It's when you try running old 16 bit brograms that you run into issues. Even with that I have a few Win 95 programs running on my Win7 64 system.