...After that any administrator can run uping.exe wih several parameter(s) to get information about users logons from database.
For examle, command "uping.exe mike" will return information like this:
======== UPING REQUEST START ==========
Username: mike
IP Address: 192.168.1.51
Hostname: PC5127
Last logon: 23.12.2011 17:04:00 (0D:19H:21M ago)
========== UPING REQUEST END==========
UPing has some additional parameters, whick allow you to search information about hostname, IP... and ping host after request. You can always run "uping /?" ...