Microsoft KB Archive/230545

= How to Enable SMB Signing in Windows 98 =

PSS ID Number: 230545

Article Last Modified on 6/11/2002

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The information in this article applies to:


 * Microsoft Windows 98
 * Microsoft Windows 98 Second Edition

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This article was previously published under Q230545



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 Description of the Microsoft Windows Registry



SUMMARY
This article describes how to enable Server Message Block (SMB) signing in Microsoft Windows 98.



MORE INFORMATION
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.

Windows 98 includes an updated version of the SMB authentication protocol. However, using SMB signing slows down performance when it is enabled. This setting should be used only when network security is a concern. The performance decrease usually averages between 10-15 percent. SMB signing requires that every packet is signed for and every packet must be verified.

To configure SMB signing in Windows 98, locate the following key in the registry with Registry Editor (Regedit.exe):

HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\VxD\VNetsup

Add the following two values to the key listed above:

Value Name: EnableSecuritySignature

Data Type: REG_DWORD

Data: 0 (disable), 1 (enable)

The default is 1 (enable)

Name: RequireSecuritySignature

Type: REG_DWORD

Value: 0 (disable), 1 (enable)

The default is 0 (disable)

After you add these values, quit Registry Editor and then restart Windows 98.

