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Winsock SPI Structures

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The following list provides concise descriptions of each Winsock SPI structure. For additional information on any Winsock SPI structure, click the structure name.

Winsock SPI structure Description
NSP_ROUTINE Contains information on the functions implemented by a namespace service provider version 1 (NSPv1) provider.
NSPV2_ROUTINE Contains information on the functions implemented by a namespace service provider version 2 (NSPv2) provider.
WSATHREADID Enables a provider to identify a thread on which asynchronous procedure calls (APCs) can be queued.
WSC_PROVIDER_AUDIT_INFO Contains audit information for a layered service provider (LSP) entry.
WSPDATA Contains service provider information.
WSPPROC_TABLE Contains a table of pointers to service provider functions.
WSPUPCALLTABLE Contains a table of pointers to service provider upcall functions.