[MSDN Library June 1998] Adding a VPN Device as a RAS Port on the PPTP Client (47.7734465234465%)
MSDN Library Visual Studio 6.0 > Windows Resource Kits > Windows NT Server 4.0 Resource Kit > Windows NT Server Resource Kit - Supplement 2 > Installing, Configuring, and Using PPTP with Microsoft Clients and Servers > Installing and Configuring PPTP on a Windows NT-based Client