Activator.CreateInstance question

Question

I have been trying to simulate the functionality I have had in the past using Server.CreateObejct(progidservername) in vbscript on a classic ASP page. It appears I need to be using the System.Activator class but I have had problems with type casting. For example: Type myType = Type.GetTypeFromProgID(progidservername); Lib.Object myObject = (Lib.Object)Activator.CreateInstance(myType); When I execute this code I receive an invalid cast. If I use the following: Type myType = Type.GetTypeFromProgID(progidservername); Object myObject = Activator.CreateInstance(myType); I don't receive any invalids but the functions from the object are not available (i.e.; myObject.DoSomething). I have tried several variations including: Type myType = Type.GetTypeFromProgID(progidservername); Object myObject = Activator.CreateInstance(myType); Lib.Object myObject2 = (Lib.Object)Marshal.CreateWrapperOfType(myObjecttypeof(myObject)); One last bit of info I have an asp page on the same server with the Server.CreateObject call and it works fine. Thanks for any help ctcoley

ctcoley · Answer

In my continued research the COM object I am calling does not implement the IDISPATCH method and therefore may not be used in a late-binding situation. I will have to research the early-binding options. For those who care (and have a COM object that does implement IDISPATCH) here is the best form of late-binding I could find: Type myType = Type.GetTypeFromProgID(progid servername false); Object myObject = Activator.CreateInstance(myType); Object[] aryInputArgs = new Object[] {myParameters}; Object objResponse = myType.InvokeMember(ProcedureName BindingFlags.InvokeMethod null myObject aryInputArgs); resultType myResponse = (resultType)objResponse; I had to add a reference to System.Reflection also. All that being said any help with early binding a COM object on a remote server would be greatly appreciated. Thanks ctcoley