DOCERR: Setting of SO_DEBUG Option Is Ignored by Winsock Apps

 Last reviewed: November 12, 1995
Article ID: Q138965
The information in this article applies to:
  • Microsoft Windows Software Development Kit (SDK) for Windows versions 3.1, 3.11
  • Microsoft Win32 Software Development Kit (SDK) versions 3.1, 3.5, 3.51, 4.0

The Windows Sockets specification (Winsock) version 1.1 provides for an application to set the SO_DEBUG option by calling the setsockopt() API.

Although a call to set this option succeeds (doesn't return SOCKET_ERROR), the setting is ignored by all Microsoft Windows Sockets implementations. This includes the Winsock implementations for:

  • Windows for Workgroups 3.11 (MS TCP/IP-32)
  • Windows NT 3.1, 3.5, 3.51
  • Windows 95
  • LAN Manager 2.2c

Additional reference words: 3.11 4.00 3.10 3.51 2.20c 3.50
KBCategory: kbnetwork kbdocerr
KBSubcategory: NtwkWinsock

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Last reviewed: November 12, 1995
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