Here's a couple of nifty command-lines to disable Office for X's PID checking and eliminate the possibility of nasty DoS attacks (as well as allowing you to run Office on two machines on your LAN, as I do, though I only use one machine at a time):

 root# ipfw add deny udp from any 2222 to any
 (will keep your Office V.x from talking to other instances.)
 root# ipfw add deny udp from any to any 2222
 (...keep from listening)
 

From the WELL: thanks, chuckk!