.NET: How to determine if an object is a COM object?

Question

How to determine if an object is a COM object? I need to call Marshal.FinalReleaseComObject for all COM objects in an array of type Object.

Answer 1

Marshal.IsComObject

Answer 2

typeof(myObject).IsCOMObject 

or

 instanceOfMyObject.GetType().IsCOMObject 

Answer 3

You can call GetType () and check the IsCOMObject property