How to connect usb modem in sony xperia?

— It's impossible to play music using the provided method of connectivity. You...

— If you want to connect the phone to the PC, you will need to download the...

— To connect the phone to your Windows 7 PC, download the PC Companion from the...

— You can stream the Internet from the phone through the USB cable or WiFi in...

— I really don't know what have gone wrong with the program you were using....

— The answer to the question is that you need to install the Sony PC Companion...