COM+ object activation in a different partition
Make sure your Com is public and visible. To do this, add these tags to your Com class: [ClassInterface(ClassInterfaceType.AutoDual)] [Guid(“41E90F3E-56C1-4633-81C3-6E8BAC8BDD70”)] [ProgId(“……….”)] [ComVisible(true)] public class MyCom { Make sure your COM has been registered. You can do this using the command line: C:\WINDOWS\Microsoft.Net\Framework\v4.0.30319\regasm “C:\…….\xxx.dll”