Hi Syd,

I had a similar problem which I think you might benefit from! I too wrapped a Map control into a UserControl and distributed this with my application - a nice way of encapsulating just the features you need.

Anyway, I installed MapPoint on all the client workstations where users have basic user rights (no admins or power users). I noticed that the map control errored the first time they ran my app. This problem didn't occur on my workstation where I am admin.

I found that to fix this, simply start the full MS MapPoint app, closing it down again and then running up the application again seemed to do the job. I am guessing that it's a permissions issue on the registry - if you notice the first time you run MapPoint it asks you to accept a EULA - it must record the fact that you have accepted this in a registry value somewhere which normal users can't get to.

I hope that's of some help.