I have a VB dll with a method that opens a file on a mapped network drive. It works fine when I call the method from a standard VB app; It also works fine when I call the method from an ASP page served by PWS on a Win98 computer. However, when I call the method from an ASP page served by IIS on Win2000 or NT4, I get an error 52, bad file name or number. Any idea why and what to do about it? <BR><BR>(Again: the drive has been mapped successfully, and the method works from a standard app on both machines.) <BR><BR>Thanks much! <BR>P.S. This is a crosspost after a week at 'ASP Components'