MAC mini 10.6.5 server with SMB as a simple file sharing server for WORD documents. if the Guest mode is OFF, any Windows 7 workstation cannot execute NET commands example: C:\Users\timeclock>net view System error 1326 has occurred. Logon failure: unknown user name or bad password. the W7 has a valid username with password so it should execute the command with such privileges, right ? So why does SMB guest mode needs to be ON for it to work ? This is directly related to computer browsing issue with Windows on the network as described here: http://discussions.apple.com/thread.jspa?threadID=2651459&tstart=0 what is the best setting in ADVANCED tab ? do i need need BOTH WMB and DMB enabled ?