Put yourself in a stealth suit on your local area network.

In Windows XP, right-click Network Places select Properties, open the Networking window, double-click the Local Area Connection icon, pop up the Local Area Connection Status dialog box, click the Properties button, open the Local Area Connection Properties dialog box, and File and Printer Sharing on Microsoft Networks and the check in front of QoS Packet Scheduler remove, Confirm and exit the dialog box, restart your computer so that no one can see your computer, and you cannot share content on your computer.

In addition, we can also modify the registry to hide their own, experts remind you, just click "Start → run", enter "Regedit" and press ENTER, open Registry Editing window, and then locate to Hkey_local_machinesys Temcurrentcontrolsetserviceslanmanserverparameters, look at the right window is known as "Hidden" DWORD value, if not, right click on the blank area, select the right menu of the "new" command, create a new "DWORD Value" and name it "Hidden" to set the value of the key to "1".

This method hides only you in "the Network Neighborhood" the figure, actually knows your computer name the user can still access through the network path to you to share the file content.