Its a well known chat client that allows you to talk to fellow mir’ers via a microphone while playing mir.

1.Download from ftp://ftp.freenet.de/pub/4players/teamspe…nt_rc2_2032.exe
2.Install and run
3. Click connect as in image 1
4. Rick click and select add server as in image 2
5. Input the information, only the IP is important really, choose an appropriate nickname.