Establish a VPN connection pre-logon in Vista/Server 2008/Windows 7

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3. Press CTRL+ALT+DELETE.
4. Windows displays the logon screen for the user that last logged on. Press ESC or click Switch User to view other logon choices.
5. A blue button appears to the left of the red Shutdown button. Click the blue button. Windows displays a list of system-owned dial-up connections for you to choose, if there is more than one. Otherwise, Windows uses the single system-owned connection.
6. If prompted, type the user name and password for the dial-up connection and click the round blue button to connect.
7. Windows then establishes a connection to the remote network using the provided credentials. It uses these same credentials when logging on to the domain.