[MSDN Library June 1998] Messaging (27.8798185941043%)

MSDN Library Visual Studio 6.0 > Platform SDK > Windows Programming Guidelines > BackOffice Programmer's Reference > Developing Microsoft Exchange Server Applications > The Architecture of Microsoft Exchange Server > Microsoft Exchange Server Components

[MSDN Library June 1998] Messaging Clients in a BackOffice Environment (21.2088320176555%)

MSDN Library Visual Studio 6.0 > Platform SDK > Windows Programming Guidelines > BackOffice Programmer's Reference > Developing Applications in the Microsoft BackOffice Environment > Programming Requirements and Recommendations > Client Requirements for BackOffice

[MSDN Library June 1998] Messaging Application Program Interface (MAPI) (17.8140096618358%)

MSDN Library Visual Studio 6.0 > Windows Resource Kits > Windows NT 3.51 Resource Kit > Windows NT Resource Kit Volume 1: Resource Guide > Microsoft Mail > Customizing the Mail Client