On a mailing list recently, someone asked where they could find their serial number for an installed copy of CF4. Fortunately I had a copy of CF4.01 where I could look up in the registry where the serial information is stored. If you're updating an old install of CF and need the original serial number for the software, try checking the server's registry branch of:
HKEY_LOCAL_MACHINE\SOFTWARE\Allaire\ColdFusion\CurrentVersion\Registration
Comments for this entry have been disabled.