Finding windows FastCGI help is proving very difficult. Any help would be greatly apprciated.
The concept of FastCGi is that the process survives a request allowing you to maintain state between calls. This means you do not have the overhead of opening databases etc between calls.
Apart from that, FastCGI is fully multiplexed: http://cryp.to/publications/fastcgi/#MULTIPLEXING
The problem lies in the C API
The source for libfcgi.dll is available here: http://www.fastcgi.com/drupal/node/5
This is not supported by MS as anyone connected with FCGI or IIS points out in a hurry