A: 

Ou... i have this problem too, with nginx + Windows. Only one active script at one time. :(

Do you found a solution of this problem? :) Apache and IIS work well with PHP Fast-CGI, as I know...

Dddin
Sorry late reply, and yes I found an answer to my problem. There isn't anything wrong with PHP at all... but there exists no decent wrapper for Windows which can handle concurrent requests. For Linux this isn't a problem as PHP can do this natively (it's built-in) but for Windows you need something else, I believe either nginx or lighttpd compiled for Windows (it's on a Russian site) provides one such wrapper its an executable file (which comes with the binary files) which simply spawns worker threads and manages them, an thread pool if you like. I tried searching for the URL but can't find it
Sbm007
A: 

Question has been solved.

Sbm007