Article ID: 265334
Article Last Modified on 1/27/2007
APPLIES TO
- Microsoft Windows 95
- Microsoft Windows 98 Standard Edition
- Microsoft Windows 98 Second Edition
This article was previously published under Q265334
SYMPTOMS
Under the following conditions, you computer may become unresponsive, or appear to stop responding (hang):
- The Microsoft IPX/SPX protocol is installed on your computer.
- You are connected to a network.
CAUSE
This problem can occur if your computer receives a denial of service attack that targets an IPX diagnostic port. This type of denial of service attack can generate large amounts of network traffic (a network storm) by using the Microsoft IPX/SPX protocol. A portion of the IPX/SPX protocol listens on the IPX diagnostic port and replies to requests for diagnostic information. The diagnostic port listener software does not filter the requesting computer's network address correctly, and may reply to a network broadcast address, which causes other IPX diagnostic listener programs to also reply. This may generate a large amount of unnecessary network traffic.
RESOLUTION
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that this article describes. Apply it only to systems that are experiencing this specific problem.
To resolve this problem, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:
Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.
The English version of this fix should have the following file attributes or later:
Date Time Version Size File name Platform
-------------------------------------------------------------
08/03/00 04:38p 04.00.951 51,052 Nwlink.vxd Windows 95
08/03/00 04:38p 04.00.1114 51,567 Nwlink.vxd Windows 95 OSR2
06/30/00 06:47p 04.10.1999 51,034 Nwlink.vxd Windows 98
06/30/00 06:47p 04.10.2223 51,039 Nwlink.vxd Windows 98 SE
To work around this problem, restart your computer.
STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.
MORE INFORMATION
For additional information about Windows 98 and Windows 98 Second Edition hotfixes, click the article number below to view the article in the Microsoft Knowledge Base:
206071 General Information About Windows 98 and Windows 98 Second Edition Hotfixes
For additional information about Windows 95 hotfixes, click the article number below to view the article in the Microsoft Knowledge Base:
161020 Implementing Windows 95 Updates
Keywords: kbhotfixserver kbqfe kbfix kbnetwork kbprb kbqfe KB265334
