VB6 dll to .NET- basic question

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VB6 dll to .NET- basic question

Hello there,
as the name suggests I'm a complete novice, so apologies in advance...

I have a VB6 dll that I need to use in VS2005. After using the VS upgrade tool, the dll (which deals with scanning) works, but not as it should. Instead of opening its own scanning dialog box, I get the scanner dialog box. After doing some research, I've tried to use the tlbimp as well as the regsvr32 tools with no success (the tlb told me the dll is not a library type and the regsvr returned a message saying the DllRegisterServer entry point was not found). I don't have any idea what to do or where to look for info for beginners, and would be grateful for any suggestions.



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VB6 dll to .NET- basic question

  • vc#tyro

    Is this your VB6 dll


  • jayaraja

    Hello Jan,
    When I try to add a reference to the dll I get a message saying the reference could not be added and asking me to make sure the file is accessible and that it is a valid assembly or COM component. Any ideas


  • GCParris

    I haven't encountered that error. How are you adding the reference

    Here's the steps I took to add my dll,

    From the 'project' menu

    Select 'Add Reference'

    Select the 'COM' tab

    Select your dll and click OK

  • UmaMohan

    Did you know that you can reference and use VB6 dlls


  • Andy Rogers

    You do not need VB6 in order to register the file, however you may need suporting files required by the dll, ask for a setup program to install the dll - this should include the dll and all other required files and of course would register it for you.

    When you can't register a VB6 dll it may well be because that dll relies on some other file. As with all VB6 stuff, you can't just copy files like you can in .Net

  • bpeikes

    What we're talking about here is using you VB6 dll, there is no 'upgrading the VB6 code to .NET' involved with what were talking about here. If the VB6 dll is not registered on your machine then it won't appear in the com list and it can't be added as a reference.

  • samymelbourne

    This just might be the problem!
    My dll doesn't appear under the 'COM' tab, so I browse for it and then get this message. Could it be that I've missed something while upgrading the VB6 code to .NET Am I supposed to place the dll in a certain folder
    And again, many thanks :)


  • bChaudhary

    Yes, the dll was created by one of my colleagues. Is it possible I can't register the dll since this machine doesn't have vb6 on it


  • Andre Odendaal

    All apologies... I should have said the vb6 dll will be used in a vb2005 application that was upgraded from vb6.
    Regardless, when I try to use regsvr32 to register the vb6 dll on my computer, I'm told the DllRegisterServer entry point was not found.

  • VB6 dll to .NET- basic question
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