Find Out If Your Computer Is Secretly Connecting to the Web :

If you are trying to track down why your computer is running so slooowwwly, try using this simple DOS command from Digital Inspiration to uncover a possible problem:
Type cmd in your Windows Run box.
Type "netstat -b 5 > activity.txt" and press enter.
After say 2 minutes, press Ctrl+C.
Type "activity.txt" on the command line to open the log file in notepad (or your default text editor)
This .txt file will have a record of everything that has made an Internet connection in the last couple of minutes; you can then check your task manager to find out where it is and take care of it.

Is Your Computer Connecting To Websites Without Your Knowledge [Digital Inspiration].