php 5 IIS 5 Install 404 Error

This is my first post to this list - but I've spent all morning looking over the list archives and haven't found a solution to my problem. I have IIS 5 running on windows 2000 server and I need to get php5 up. I wanted to run it using ISAPI instead of the CGI .exe approach (aiming for best security and performance - which would be the ISAPI approach, right?) I've followed all the install instructions carefully and currently have it set up this way. C:\php has php and the .ini file. Both environmental variables PATH and PHPRC environmental variables as described: http://us2.php.net/manual/en/faq.installation.php#faq.installation.addto path IIS is up and running and will serve pages correctly, *except* .php pages which it gives me a 404 error. As in a prior post in this list, I named a file: "file.htm" and it came up, then named the *same* file "file.php" and 404 error. I've set all the files I can think of (C:\php, files being red by IIS) to full access - so unless I forgot something, permissions don't seem to be the problem. Any help or direction would be very much appreciated, thanks! Sean -------------- http://www.elastichorizon.com --------------