When I install Autodesk Inventor 5.3 on Windows 7,it will have "unexpected error with the license management system. Please contact system administrator or dealer".
When running Autodesk Inventor 5.3, it will have error "error:loading cdilla dll" and "error:unable to initalize adm"
Any advice on this.
so, you're expecting software released in Jan 2002 to work on an OS released in 2009???
You need to be running Inventor 2010 or newer for Win 7 compatability.
doubt xp mode will cut it (in any realistic way) - from memory it emulates a generic graphics-card so doesn't use your actual graphics card hardware. Thus would imagine anything in 3d would be v v bad...
At the end of the day, you need to use software that's compatible with the pc's OS...