I have Adobe Distiller (Adobe Acrobat 6.0 Professional Installer) which worked just fine under XP.
Upgraded my PC to x64 and Distiller won't re-install.
Have found allusions to the fact that it can be done on the Internet but would someone be kind enough to explain the process in BIG LETTERs.
Error Message = Warning 20225. Adobe Acrobat 6.0 Setup was unable to create a new item. Adobe PDF Port Monitor.
GetLastError: The environment specified was invalid.