Hello Phil!

I tried these changes:

I made an interface to my class and added a GUID (VS/Tools/Create GUID). It
now looks as follows:

namespace NETtoCOM
{
    public interface ITestClass
    {
        String Test();
    }

    [GuidAttribute("E0EBB103-BCDB-4dd6-B0AB-1B67967B72A8")]

    public class TestClass : ITestClass
    {
        public TestClass()
        {
        }

        public String Test()
        {
            return "Test";
        }
    }
}

In the Project property pages, under Configuration properties, I found a
property "Register for COM Interop". This was set to true even before. Is
there another registry property that has to be set?

Anyway, I uninstalled and installed the assembly and looked for the GUID in
the registry. No match, but I still could reference it from VB6 (Still got
the 429 error). I then used regasm and successfully registered and found the
assembly/GUID in the registry. I've created a new VB6 project and got this
error:

Run-Time error: The File or assembly NETtoCOM or one of its dependencies was
not found.

I ran depends.exe and got two warnings regarding the files Apphelp.dll and
MPR.dll. I found out that the Apphelp.dll was XP-specific and should not be
installed on win 2000. Is it possible to disable it from the assembly? The
second warning was the same as on my dev comp:

"At least one module has an unresolved import due to a missing export
function in a delay-load dependent module." It seems to be error with the
WNetRestoreConnectionA function

/Miro