File does not exist: CGI error?

I've installed PHP with IIS5.0 When I type an URL for a PHP file that does not exist, I get a CGI error. For example: http://mysite/thisfiledoesnotexist.php == CGI Error The specified CGI application misbehaved by not returning a complete set of HTTP headers. The headers it did return are: == When I change the name to: http://mysite/thisfiledoesnotexist.phextension Than I get the usual 404-error. Why does IIS sent everything that ends with ".php" to the PHP-parser, even if the file does not exist on my server????? http://mysite/<anything>.php returns the CGI Error which I believe is generated by the PHP-parser? Anyone? Hace -- http://hace.dyndns.org/ Everything I say is my own opinion and not necessarily that of my employer.