[MSDN Library June 1998] Interoperating with the Microsoft Exchange Server Internet Mail Service (100%)
MSDN Library Visual Studio 6.0 > Platform SDK > Database and Messaging Services > Microsoft Exchange Server > Gateway Programmer's Reference > Guide > Backboning > Gateways and Backboning
[MSDN Library June 1998] Interoperating with a Previous Version of Windows (18.2073692152917%)
MSDN Library Visual Studio 6.0 > Windows Resource Kits > Windows NT 3.51 Resource Kit > Windows NT Resource Kit Volume 1: Resource Guide > Windows 3.x Compatibility
[MSDN Library June 1998] Interoperating with Other Networks (17.5534826606699%)
MSDN Library Visual Studio 6.0 > Windows Resource Kits > Windows NT 3.51 Resource Kit > Windows NT Resource Kit Volume 2: WINNT 3.5 Networking > Windows NT Networking Architecture
[MSDN Library June 1998] Interoperating with Windows 3.x (15.2649965728437%)
MSDN Library Visual Studio 6.0 > Windows Resource Kits > Windows NT Workstation 4.0 Resource Kit > Chapter 27 - Windows Compatibility and Migration > Compatibility with Windows 3.x