COM Interop [2.0]

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  • Jon
    #1

    COM Interop [2.0]

    I have created a class library in v 2.0. I have set the COM Visible
    attribute to True. Register for COM Interop is also checked in the IDE.

    I need to use the DLL from a VB6 application, so on the dev machine with VB
    6, I ran regasm /codebase. I was then able to add a reference to the DLL and
    code against it. It runs fine and uses the .Net DLL perfectly.

    Now, I am trying to get the compiled VB 6 application to work with the DLL
    on another machine (a deployment test box). I ran regasm /codebase on the
    dll. But, it doesn't work. It gives me the following error, "Class does not
    support Automation or does not support expected interface". I never got this
    error during development at all. I also tried regasm /tlb on the deployment
    box, but that does not change anything.

    What could be wrong?

    Thanks!


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    • Jon
      #2
      Re: COM Interop [2.0]

      FYI, I do know that the line in VB6 that creates the class is working. The
      code does the following:

      *Psuedo-code start*
      Dim obj as New Attachment (attachment is the .Net 2 class)

      Connect to database (I can see this happening in the log, so the Dim as New
      above is not erroring)

      obj.DoStuff (it errors later, when calling a property or function ,not sure
      which)
      *End*


      "Jon" <ruffles_@msn.c om> wrote in message
      news:eODMXNfmGH A.4100@TK2MSFTN GP05.phx.gbl...[color=blue]
      >I have created a class library in v 2.0. I have set the COM Visible
      >attribute to True. Register for COM Interop is also checked in the IDE.
      >
      > I need to use the DLL from a VB6 application, so on the dev machine with
      > VB 6, I ran regasm /codebase. I was then able to add a reference to the
      > DLL and code against it. It runs fine and uses the .Net DLL perfectly.
      >
      > Now, I am trying to get the compiled VB 6 application to work with the DLL
      > on another machine (a deployment test box). I ran regasm /codebase on the
      > dll. But, it doesn't work. It gives me the following error, "Class does
      > not support Automation or does not support expected interface". I never
      > got this error during development at all. I also tried regasm /tlb on the
      > deployment box, but that does not change anything.
      >
      > What could be wrong?
      >
      > Thanks!
      >[/color]


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