Wondershare MobileGo connect from PC behind NAT
In Windows go to Start -> Run -> cmd (right click Run as Administrator)

netstat -b -a &gt;&gt; c:\PortLists.txt


A few minutes later the command would be finished.

Open the file and search "Mobile" word.

[svchost.exe]
  UDP    0.0.0.0:5353           *:*                    
  Dnscache
 [svchost.exe]
  UDP    0.0.0.0:5355           *:*                    
  Dnscache
 [svchost.exe]
  UDP    0.0.0.0:7765           *:*                    
 [MobileGoService.exe]
  UDP    0.0.0.0:41481          *:*                    
 [BitTorrent.exe]
  UDP    0.0.0.0:60337          *:*                    
  FDResPub
 [svchost.exe]
  UDP    127.0.0.1:1900         *:* 


Here is my result:  

[MobileGoService.exe] UDP    0.0.0.0:41481