Article ID: 239731 - Last Review: January 25, 2007 - Revision: 1.2

Unable to Set the TCP/IP GlobalMaxTcpWindowSize Parameter in Windows 98

View products that this article applies to.
This article was previously published under Q239731
IMPORTANT: This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base:
256986  (http://support.microsoft.com/kb/256986/EN-US/ ) Description of the Microsoft Windows Registry
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SYMPTOMS

When you set the GlobalMaxTcpWindowSize registry parameter for TCP/IP, it does not affect the global maximum TCP receive window size (GlobalMaxRcvWin) in Windows 98 and Windows 98 Second Edition.
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CAUSE

This behavior occurs because the name of the GlobalMaxTcpWindowSize registry parameter is misspelled as "GlobalMaxTcpWindoSize" in the Windows 98 TCP/IP code.
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WORKAROUND

WARNING: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.

To work around this issue:
  1. Start Registry Editor (Regedit.exe).
  2. Locate the following registry key:
    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\VxD\MSTCP\Parameters
  3. On the Edit menu, click Add Value, and then add the following registry value:
    Value name: GlobalMaxTcpWindoSize
    Data type: DWORD
    Value: (size in bytes)
  4. Quit Registry Editor.
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STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.
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APPLIES TO
  • Microsoft Windows 98 Standard Edition
  • Microsoft Windows 98 Second Edition
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Keywords: 
kbenv kbprb KB239731
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