Pass workbook name to ActiveX DLL (VB6)

[meldrum_scotland]

I have a VBA routine which I pass some variables to an ActiveX DLL
(VB6). I can do it with integers and longs but when I try to do it
with anything more sophisticated it crashes.

I'd like to be able to pass a the active workbook name (so the DLL can
upon it).

Any help much appreciated.

Best

Meldrum