I've got Architectural Desktop 2005. I've installed it about 6 times over the years without a problem. I am now trying to install it again. The first disk goes fine but about 1/2 way through disk 2 it does this 'rollback' thing and interupts the installation. Anybody got any ideas?
If you're trying to install this on Vista or Windows 7, stop right now. It isn't supported. Otherwise, if you are using Windows XP and your ACAD 2005 license is still valid after all these years, then post your installation log in the %TEMP% folder and we'll see what is causing it.