INI Path problems

I am running W2K with IIS 5.0 and PHP 4.4.n (nsapi) I am attempting to get the curl extension working but I keep getting an undefined function. I check phpinfo and find that the extension is not loading. I check further and find that, although the ini file states that the extension directory should be c:\php\extensions phpinfo shows it as being c:\php4. The extension is uncommented, and the proper dlls have been moved to the c:\winnt\system folder. Can anyone tell me why the ini file is not being read for the extension folder or how to fix it? I have looked at http://docs.php.net/en/configuration.html for more information. This is getting frustrating, perhaps I should install Apache.