Thanks, you are right. I used php.exe -v to confirm cgi version. My query is what parameter do I use to specify host and port? That will have the same effect as -b in php5. Sorry if I didn't make it clear. John _____ From: ?? [mailto:delmeok@xxxxxxxxx] Sent: Friday, June 05, 2009 8:24 AM To: j.fairley@xxxxxxxxxx Subject: Re: Listening on host:port - Windows in php4,php.exe is the cgi version for default,and php-cli is the cli version in php5,php.exe is the cli version,and php-cgi is the cgi version i think you can use php.exe instead of php-cgi.exe in php4 2009/6/5 John Fairley <j.fairley@xxxxxxxxxx> I'm running my test server on Windows XP SP3 and have been successfully running PHP 5 for some time using: php-cgi.exe -b 127.0.0.1:10000 My live server is running on PHP 4.4 and that gives an incompatibility risk in problem solving. So I've removed PHP 5 on my test server and have installed PHP 4.4.9 but I can't find how I set host and port in php. Running php -v has confirmed that this is the cgi-fcgi version. I'm sure it's simple but I'm being driven nuts. TIA, John