Unclear English sentence

Hello webmaster, The sentence on the web page of 'http://windows.php.net/download/' is unclear for me. I have a question regarding your text-block: --- "Which version do I choose? IIS If you are using PHP as FastCGI with IIS you should use the Non-Thread Safe (NTS) versions of PHP." --- It says "... PHP as FastCGI with ...". Do you mean 'as if' or 'as well as' ? Do you mean: a) "If you are using PHP as a FastCGI with IIS ..." or b) "If you are using PHP as well as FastCGI with IIS ..." Both sentences have a different functional meaning. As I have FastCGI-problems, I need to find out what component causes the problem, or where exactly does the bug arise. Is the problem caused by PHP v7 (newer, different engine from PHP v5) or by Windows / IIS 10 components? These FastCGI problems emerge for the PHP-based frameworks Piwigo (photo gallery) as well as for Piwik (web-statistics analysis), both running within my webserver IIS 10. Friendly regards, Rolf The Netherlands www.rolfsnijders.net Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows 10