Ok i have idea for script

if someone creat scripts when you send file to contact a contact must click yes to save file but with scripts you just send him file with out his confrim...

Hmm.. not sure I understand what you mean, but couldn't they/you just enable the 'Auto accept requests' in Prefs > Conversations ?

ok what program language must now to creat own script

just find the virus emote if you want to trick your contacts

you cant force a file down their throats if the clicked cancel

I think he means that if he sends a file, then the file should be transfered without the contact pressing Yes. That is possible, just as Chris4 says but not if you meant that you yourself should be able to control it.