Classic ASP using COM+ .Net Interop 64 Bit Windows Server 2008 IIS 7 Server.CreateObject Fails

Question

I am having an issue related to executing a .Net dll from a classic asp application on a 64 Bit Windows Server 2008 server running IIS7. The situation is as follows:

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Answer 1

After a lot of help here and some more research, we finally came across the answer. To solve our issue we did the following:

• No longer inherit from ServiceComponent (This is ok, since we are not actually leveraging any specific COM+ features)

• Utilized the following commands to install the component, which must be done in order:

  gacutil /i "C:\Inetpub\wwwroot\ASPTest*name of dll*"

  regasm /tlb "C:\Inetpub\wwwroot\ASPTest*name of dll*"

This process eliminated the original errors and also had the added benefit of being able to replace the dll while IIS is running.

Answer 2

Try this

Component Services -> Computers -> My Computer -> COM+ Applications

Open a COM+ Application object.

Open Components.

Right-click on a class and select Properties.

Under "Advanced" there is a check box for "Allow IIS intrinsic properties".

It works for me

Answer 3

Create a vbs test file and try to create your COM object there. If you can't (i.e. you get the same error) then your component is not registered correctly. If you can - then it was installed correctly and the problem is with the lack of permissions for the account your application is executed under in IIS.