Problem with my ASP aplication

I am trying to design an ASP application that uses ActiveX control that calls a Mappoint. The idea is to install Mappoint on all clients that will enter in my IIS - in agree with the EULA, and I defined the IIS for no-anonymous acces so the clients enter already registered.
Everithing seems OK - when I call that ASP-page with the command:
http://my-server/my-page.asp
the asp-page calls ActiveX-control that calls the Mappont-application, which calculate all necesary things, save the map and returns it to the client....
BUT, when I call the SAME page with:
http://193.144..../my-page.asp
after the request for network password I recieve an error:

Access denied attempting to launch a DCOM Server.

or:
The server {15A40122-24D2-4FDB-8155-5F65FCE7017F} did not register with DCOM within the required timeout.

Anybody knows where should I search the problem?

Thanks.

Hi tanya,

Regarding the probelm, you will need to give the IUSR the execute permission on the Map point object.

Also please let me know how have you used the map point control in your asp page.

Thanks,
sandeep