KnowledgeBase Archive

An Archive of Early Microsoft KnowledgeBase Articles

View on GitHub

Q249824: BUG: VOLTRACK Is Erroneously Unloaded After 255 Device Additions

Article: Q249824
Product(s): Microsoft Windows 95.x Retail Product
Version(s): WINDOWS:95,98,98 Second Edition
Operating System(s): 
Keyword(s): kbbuglist
Last Modified: 17-DEC-2000

-------------------------------------------------------------------------------
The information in this article applies to:

- Microsoft Windows 95 
- Microsoft Windows 98 
- Microsoft Windows 98 Second Edition 
-------------------------------------------------------------------------------

SYMPTOMS
========

VOLTRACK is unloaded and may cause Windows to display a blue screen after 255
device additions and removals.

CAUSE
=====

VOLTRACK keeps a count of the number of devices it is attached to in an internal
byte-size variable. This variable is incremented in response to a AEP_CONFIG_DCB
command, but is not decremented. After 255 additions and removals, the byte
overflows and VOLTRACK is unloaded in response to a AEP_BOOT_COMPLETE command
from IOS. This can cause driver memory to be overwritten and can cause system
instability.

STATUS
======

Microsoft has confirmed this to be a bug in the Microsoft products listed at the
beginning of this article.

Additional query words:

======================================================================
Keywords          :  kbbuglist
Technology        : kbWin95search kbWin98search kbWin98SEsearch kbZNotKeyword3 kbWin98 kbWin98SE
Version           : WINDOWS:95,98,98 Second Edition
Hardware          : x86
Issue type        : kbbug
Solution Type     : kbpending

=============================================================================

THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY.