I have been developing a vb front end for a client running on windows 2000 using the MapPoint COM object to access MapPoint at runtime. All has been running fine until I was asked to change the operating system to Windows XP SP2.

I installed all my development tools and project files along with the full version of MapPoint Europe 2004 on to a clean machine. The operating system was installed ( not upgraded ) with SP2 from the start.

Now I can not get the project to access MapPoint at all. I get the following error message.

"An unhandled exception of type 'System.Runtime.InteropServices.COMException' occurred in axinterop.mappoint.dll

Additional information: MapPoint Europe can't run because it is not registered on your system, or it can't be found. Install MapPoint Europe and try again."

I have removed and installed MapPoint several times.

I have Norton Internet Security insatlled and defaults set, Windows XP firewall has been turned off by Norton.

Any suggestions as I really am up against a brick wall with this one.