NullReferenceException and COM

[Christian Havel]

Hi,

I have a C# application which uses the Microsoft Enterprise Library.
When I am using the locking functionality I get a
System.NullRefe renceException in mscorlib.dll. When I try to debug I see,
that the problem is with the function
System.Runtime. InteropServices .Marshal.Releas eComObject

I do not use any COM server. How can I find out, which COM server is
registered?
Does the Enterprise Library use COM servers?

Thanks
Christian