Portable BORGchat? (chat on LAN)

since i have multiple flashdrives and the computers at school either are sp1 or have administrator student accounts w/ deepfreeze, this works for me fine with out portability tweaks. but it would be great if it were tweaked. my friends and i use borgchat to chat during study period w/o making the teaching mad. we also use powermenu so the teacher wont notice anything at where she is at :D. maybe someone could make a nsis launcher for it?