The fourth and fifth mouse buttons may not be recognized by Windows. This applies to the typical mouse, as well as to integral mouse hardware on some laptop computers.

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The mouse drivers included with Windows 98 and Windows 98 Second Edition do not support the 5-button mouse.

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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.

   Date        Time     Version    Size    File name
   ---------------------------------------------------
   02/25/2000  06:08pm  4.10.2223  10,123  Mouhid.vxd
   06/14/1999  05:35pm  4.10.2223  15,833  Msmouse.vxd
   06/14/1999  05:37pm  4.10.2223  33,356  Vmouse.vxd
				

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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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The updated drivers described in this article were initially developed to support Microsoft IntelliMouse Explorer.

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:

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