Recentely, I wrote a fastcgi app for IIS and found when my application use multi-threaded,
1. if I used namedpipe mode (IIS fastcgi), my application would hang due to Read-Write to the named pipe at the same time conflicts.
2. if I used Tcp mode, my application would get hang occationally
According to above, I am suspecting IIS is not support multi-threaded FastCgi apps, is that true?