[MSDN Library June 1998] Windows Sockets SPI Header File - WS2SPI.H (51.6052762568442%)
MSDN Library Visual Studio 6.0 > Platform SDK > Networking and Distributed Services > Windows Sockets Version 2 > Windows Sockets Version 2 SPI > Overviews > Name Resolution Service Provider Requirements > Additional Windows Sockets 2 SPI Concerns