Guys, how do v stop Downloading, Yahoo Voice chat, and ...

[jibrankh]

Friends, i need sum help, how do v stop downloading, voice chat on yahoo messenger using wingate.... through both HTTP, FTP proxies and NET i stopped FTP services infact i deleted them but still it allows the clients to download files using DAP and simple downloads... and i alsow need to know how to stop voice chat on yahoo... thanks... and yeah if sumone can help me blocking video chat and file transfering as well.. but first tow are more important... thanks alot... [/b]