Normally the last MaxIm that is run is the one that ACP will use. Normally they do not interfere. I thought with the multiple uninstalls etc something got mixed up with the Windows API registration. Im now thinking that your issue may be something else. Im trying to take care of the low-complexity/time issues today and over this holiday weekend. It sounds like I will need to log in and take a look. Id rather do that next week. Were going to take some time for ourselves today and tomorrow.