Two important FastCGI settings:
	- 
	ActivityTimeout – This is the number of seconds that the FastCGI handler waits for I/O activity from a process before it is terminated. At some place you will also find this as being documented as number of seconds PHP-CGI process can run without communicating to IIS. 
- 
	RequestTimeout – This is the maximum amount of time in seconds that a FastCGI process is allowed to handle a request before it is terminated. 
Important PHP INI directive for this discussion: