.NET Framework 4.5
Provides COM objects with version-independent access to the Type.IsSubclassOf method.
Assembly: mscorlib (in mscorlib.dll)
Return ValueType: System.Boolean
true if the Type represented by the c parameter and the current Type represent classes, and the class represented by the current Type derives from the class represented by c; otherwise, false. This method also returns false if c and the current Type represent the same class.