This software was made to enable the use of urt://ip:port links. When you have installed the software you can launch a game of Urban Terror directly from a hyper link to join a game server.

Note than you can url urt://ip:port/?password=***&rconpassword=**** to connect with passwords. If you want to do the same using the utilities field, you must enter ip:port;password=***;rconpassword=****