If you have a G25 or Logitech wheel mate you dont need it, as mentioned above...
Quote (B1gch0pper)
I just set my G25's right wheel button to act as a middle mouse button press in profiler, then set the PTT key in TS to MMB, easy?
Step 1)
Open up Profiler, make sure the game is set to Live for Speed, click 'Button 7' (if thats the one you want to use), then from the drop down list select 'Middle mouse button'.
Step 2)
Go into Teamspeak, sound settings, click the 'set' button for the Push to Talk, then press your middle mouse button (shows as 'mouse btn 2'?), hey presto!
No need for any extra software! Still not quite sure why people with G25's and 7's or any Logitech wheel are using it in the first place??
The only reason i can see for using J2K is if you didnt want to run Profiler in the background while driving, but then surely the wheel wouldn't work with the settings you like?