[MSDN Library June 1998] Socket Handles for Windows Sockets 2 (45.9445280329427%)
MSDN Library Visual Studio 6.0 > Platform SDK > Networking and Distributed Services > Windows Sockets Version 2 > Windows Sockets Version 2 Protocol-Specific Annex > Windows Sockets 2 Protocol-Specific Annex > Welcome to the Windows Sockets 2 Protocol-Specific Annex > Microsoft Extensions and Windows Sockets 2