Use Mappoint ASP.NET whithout mappoint webservice

[degrem_m]

I've been trying to build a .NET application that references the
MapPoint .
I've succeeded to implement and run a .NET Windows application

MapPoint.Application app = new MapPoint.ApplicationClass();

This works just fine, but when I try the same in a ASP.NET web
application
or service

I get a runtime exception: "Access is denied"

In IIS, I actived "Integrated Windows Authentication" in Directory
Security and Execute Permession : Scripts and Executable. But it's same
message.

Does anyone have any idea why this is the case?

thanks in advance,

Michel