I have just started to work with an implementation of packaging .wma/.wmv. I have created a web service and added references to the COM objects. However I am having sopme problems with the C#/VS2005 environment. It seems as though the creation of some methods are of type Interface meaning that I need to implement local methods in some way.

So creation of the object
WMRMKeys drmKeys = new WMRMKeys(); //INterFace
generates an exception on my XP laptop. I am not sure how to resolve this. I reckon I need to implement own methods but then again not sure what they should do. All the doc'mn from Microsoft is based on ASP/Visual Basic

I am using a standard web service definition
public class WMDRMService : System.Web.Services.WebService

and hence the class does not derive from WMRMOBJSLib.WMRMKeys

Any help most welcome

Cheers Sverre
Ref.:
msdn2.microsoft.com/en-us/library/bb263414.aspx
msdn2.microsoft.com/en-us/library/ms867139.aspx
msdn2.microsoft.com/en-us/windowsmedia/bb190309.aspx