You can disable or enable Windows XP’s Remote Desktop feature with a simple registry tweak. Use the registry to configure this setting by performing the following steps:
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Start the registry editor (e.g., regedit.exe).
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Navigate to HKEY_LOCAL_MACHINESYSTEM\CurrentControlSet\Control\Terminal Server.
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Double-click fDenyTSConnections.
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Change the value of this setting to 0 to enable Remote Desktop or 1 to disable it, and click OK.
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Close the registry editor, and reboot the computer for the change to take effect.
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