Microsoft is making FastCGI features delivered for IIS 7.5 in Windows 7 available for download for Windows XP and Windows Server 2003 through FastCGI ISAPI 1.5 Beta, that includes MonitorChangesTo, StderrMode and Real-time tuning features. “To enable this, you need to set SignalBeforeTerminateSeconds property in fcgiext.ini to greater than 0,” Singla adds. “When this functionality is enabled, IIS will create an inheritable event and pass its handle value to child process as value of _FCGI_SHUTDOWN_EVENT_ environment variable. If FastCGI ISAPI ever encounters a situation and is required to terminate the child process, it will first signal this event and wait for a maximum of SignalBeforeTerminateSeconds for process to terminate on its own. On detecting event being signaled, child processes can terminate themselves cleanly. If child processes are still alive after the wait period, IIS will forcibly terminate them.”

Source:→ Softpedia