IIS 6 + ISAPI + Win 2003

What specific permissions do I need to create a file in
Win 2003 server, by a ISAPI extension running on IIS 6.0.

In our application we would create a temporary file to
hold some important information, and place it inside one
of the Subdirectories where the ISAPI extension is
present. The temporary file creation could not happen for
whatever reason in Win 2003 / IIS6.

The same method which works with
Win 2000 + IIS 5.0 when run as an ISAPI
extension. However, if the subdirectory with the
temporary file running successfully in Win 2000 is copied
to Win 2003 server, from then on, it works fine.

Also, the same application, when run as *Exe* in Win
2003, is able to create the required temporary file.
The original issue is with the Win 2003 server permissions
or the IIS settings ?

Any suggestions are welcome

Thanks,
Swami

I'm having the very same problem with a legacy IIS5 application and would
love to hear the solution!

For the file to be created/wrtten to, I have added the anonymous IUSR_xx to
the security attributes of that file and given that anonymous user full
access to that file. But that didn't seem to help.

I've also looked at the Web Service Extensions in the IIS Manager. I've
added my ISAPI DLL to the list of permitted DLL's to run. But a question I
have is do you need to add the data file you are writing to in this section
of the manager as well? Or do you just list DLL's?

TIA

Harry