I was having trouble loading ACT 2006 on Windows 7 64 bit. I was getting an error that said it would only load on 32bit versions. To resolve this issue I went to the D:\actstd\setup and ran the installer from there. D: should be replaced by your actual CD Drive letter. This bypasses any of the checking and allowed me to load the program. I have been running the program fine for many weeks now and ACT works great.