mapserv.exe - file not found error under Windows 2003

[Mike Dunham-Wilkie]

We are trying to run Mapserver under Windows 2003 / IIS.  I have it running
successfully in a Windows XP environment, but when I follow the same
installation process / IIS setup on the Windows 2003 box and point to

http://website/cgi-bin/mapserv.exe?....

I get a 404 - Page not found error, even though when I go to

http://website/cgi-bin/     (without the mapserv.exe) I get a directory
listing showing mapserv.exe

The file mapserv.exe appears to have appropriate permissions set.

Does this ring a bell with anyone?

Thanks very much

Mike Dunham-Wilkie