Čtyřicetdva

C-O-D-O-S-T-A-N-E-T-E-K-D-Y-Ž-V-Y-N-Á-S-O-B-Í-T-E-Š-E-S-T-K-U-D-E-V-Í-T-I-?

To query logged on users on remote machine use cmd:

qwinsta /server:<servername>

To log off user use cmd:

logoff <sessionId> /server:<serverName>

Source: http://www.danrigsby.com/blog/index.php/2008/08/26/remotely-log-off-remote-desktop-users/