WINSOCK Accept() Returns Error 10022

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Article ID: 201348
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WINSOCK may return an error 10022 when trying to do an accept() on connections.


Code was added to Afd.sys that inadvertly causes this error to be returned if there is a driver layered above Afd.sys.


To resolve this problem, obtain the latest service pack for Windows NT 4.0 or the individual software update. For information on obtaining the latest service pack, please go to:
  • 152734 how to obtain the latest windows nt 4.0 service pack
For information on obtaining the individual software update, contact Microsoft Product Support Services. For a complete list of Microsoft Product Support Services phone numbers and information on support costs, please go to the following address on the World Wide Web:;EN-US;CNTACTMS


Microsoft has confirmed that this is a problem in Windows NT version 4.0. This problem was first corrected in Windows NT version 4.0 Service Pack 5.


Article ID: 201348 - Last Review: June 11, 2012 - Revision: 3.0
kbhotfixserver kbqfe kbbug kbfix KB201348

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