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Windows 2000 Telnet Server Stops Responding After Binary Input

This article was previously published under Q267843
This article has been archived. It is offered "as is" and will no longer be updated.
When a Windows 2000-based computer that is running the Telnet Server service receives a malformed stream of binary zeros as input from a Telnet client, the Telnet Server service may stop responding (hang).
To resolve this problem, obtain the latest service pack for Windows 2000. For additional information, click the following article number to view the article in theMicrosoft Knowledge Base:
260910 How to Obtain the Latest Windows 2000 Service Pack
The English version of this fix should have the following file attributes or later:
   Date       Time     Size      File name   ------------------------------------------   06/30/00   04:03p    55,056   Tlntsess.exe   06/30/00   04:03p   180,496   Tlntsvr.exe				

Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Windows 2000 Service Pack 2.
When the Telnet Server service hangs, any existing Telnet client sessions are disconnected, with the loss of any work that was in progress at the time. However, this does not affect any other services on the host computer, and cannot affect Windows 2000 itself. You can restore operations by restarting the Telnet Server service.

For related information about this problem, please visit the following Microsoft Web site:For additional security-related information about Microsoft products, please visit the following Microsoft Web site:

Article ID: 267843 - Last Review: 10/20/2013 23:09:40 - Revision: 5.3

Microsoft Windows 2000 Server, Microsoft Windows 2000 Advanced Server, Microsoft Windows 2000 Professional Edition

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