Slap :
If you don't want to set the wwwroot/forum to IIS application , that you need to move the file to wwwroot/ instead of wwwroot/forum.
so the bin directory should be wwwroot/bin , the web.config should be wwwroot/web.config ,
the CuteSoft_Client should be wwwroot/CuteSoft_Client .. etc .
And you need change the asp code for the path changing too .
Hope this helps .
Regards ,Terry .