Microsoft KB Archive/821426

= FIX: The Inetinfo.exe process may experience an unhandled exception when it uses the Internet Printing Internet Server API (ISAPI) in heavy load =

Article ID: 821426

Article Last Modified on 10/26/2005

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APPLIES TO


 * Microsoft Internet Information Services 5.0

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SYMPTOMS
The Inetinfo.exe process may experience an unhandled exception when it uses the Internet Printing Internet Server API (ISAPI) in heavy load. You may receive the final entries in the event log with Event ID 204:

The HTTP server encountered an unhandled exception while processing the ISAPI application

WINSPOOL + 0x1402D

WINSPOOL!OpenPrinterW + 0x4E

msw3prt!GetExtensionVersion + 0x493

msw3prt + 0x7883



CAUSE
This behavior occurs because of a fault in the parsing logic in the Msw3prt.dll file. The Msw3prt.dll file does not NULL terminate requested paths.



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:

http://support.microsoft.com/contactus/?ws=support

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 hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.   Date         Time  Version        Size    File name -  29-May-2003  21:19 5.0.2195.6749  76,560  Msw3prt.dll



STATUS
Microsoft has confirmed that this is a bug in the Microsoft products that are listed in the &quot;Applies to&quot; section.

Keywords: kbbug kbfix kbqfe kbhotfixserver KB821426

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