PHP Install Fail: IIS5 - W2K ADV

Hi all, I am having problems installing the ISAPI version of PHP. I am using the latest release from php.net. I unzip the files to c:\php4 I then copy the dll's as instructed to my system32 on c:\winnt I then copy the PHP.INI to c:\winnt\ and specify the location of the extensions. I then configure the .php extension to the location of php4isapi.dll in IIS5 Manager. I then create and copy a test php file called testphp.php to my webroot and run via a browser like: http://localhost/testphp.php The file itself contains: <?php phpinfo(); ?> Via the browser I get the following error: "Invalid access to memory location" Although sometimes I also get this error: "Warning: Failed opening 'c:\inetpub\wwwroot\phptest.php' for inclusion (include_path='.;c:\php4\includes') in Unknown on line 0" Has anyone any ideas how to fix this? TIA -- Kind Regards Nic Skitt http://ultradevfaq.com <% Rate your ISP here: http://ultradevfaq.com/isps.asp %>