[Samba] Finding logged users with smbstatus

[Marco De Vitis]

Hi,
in a Samba 3.0.24 domain, using roaming profiles and WinXP (or later) 
workstations, can I be *100% SURE* to catch any logged in users when 
checking the "smbstatus -p" output?

I need this to send internal service instant messages to some logged in 
users.

Can it happen somehow that a logged in user is not listed in the 
"smbstatus -p" output, e.g. if he has been inactive for a while?
Or is the process always active until the user logs out?

Thanks.

-- 
Ciao,
   Marco.