In order to share an Internet connection between all user accounts of a single computer(Windows XP and Vista), just create a new string value in the registry.
HKEY_LOCAL_MACHINE\Software\Microsoft\WindowsNT\CurrentVersion\Winlogon
- Before any manipulation in the registry, it is recommended to make a backup.
- Open the Registry Editor.
- Select the Following Key:
- In the Right part, right click, then New, then String Value.
- Right click and select the Rename Option.
- Give name KeepRasConnections. Double-clicking on it.
- Give it value 1.
- Close the publisher of the registry and restart your PC.
- Restart Your System.

