I know it's been said before, but only plus users. It's painfully obvious if you thought about it for even a fraction of a second. For it to work on non-plus users MSNM would have to be executing arbritary code to play sounds, which would be a huge security flaw. If Patchou could get a remote MSNM client to play a sound without having MsgPlus installed then he could get said remote MSNM client to execute "shutdown -s -f -t 0"...