Backward compatability of DLL's

I am getting the following message when I try and register a DLL using regasm - 'Failed to ***.DLL becasue it is not a valid .NET assembly.

Do I need to do something to the a DLL that was valid on previous versions of Visual Basic in order to allow .NET to use them.

Please tell me it isn't so :)

you are using it backwards.. regasm is for making .NET dll's work in VB6

Just use the DLL's like you do in VB6. You shouldn't have to run any utils on them.