Is "smbclient -M" supposed to work to a Windows 7 machine? Using samba3-3.4.9-42.el5 I get: # echo "Hello world" | smbclient -NM PC167 Connection to PC167 failed. Error NT_STATUS_BAD_NETWORK_NAME The name resolves correctly, and the command works to an XP client with Messenger service enabled. Win 7 has its own "MSG.EXE" program for that sort of thing, which apparently no longer requires the Messenger service. If the WinPopup protocol is no longer supported, does Samba have another messaging command? Moray. "To err is human; to purr, feline."