In your ASP.NET project's Solution Explorer, right click on References and then on Add Reference.
After a few moments, the Add Reference window appears. There are three tabs: .NET, COM and Project. Click the COM tab. If you have registered your COM on the computer it will appear in the list, if not, click Browse and path your way to where your DLL is located. Highlight the DLL and click Open (example: wdkSymposium.DLL). Then click OK.
Type an Import statement for your DLL, you will see the name of the DLL appear in the dropdown, when you type the word IMPORTS.
Imports wdkSymposium
Then use a DIM statement to instansiate it:
Dim ws As wdkSymposium.CdbIOClass = New wdkSymposium.CdbIOClass
You can then reference the various public methods and properties. Using the above example, you can reference a method like this:
If ws.addArchive(Guid) Then
.....
End If