Buffer Overrun in IIS When No Script Maps Exist

Article translations Article translations
Article ID: 325571 - View products that this article applies to.
This article was previously published under Q325571
This article has been archived. It is offered "as is" and will no longer be updated.
Expand all | Collapse all

On This Page


If no script maps exist for the Web site, a specially formatted URL can cause a buffer overrun, causing IIS to crash.


Service Pack Information

To resolve this problem, obtain the latest service pack for Microsoft Windows 2000. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
260910 How to Obtain the Latest Windows 2000 Service Pack

Hotfix Information

A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Windows 2000 service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone 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 typical 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 has the file attributes (or later) 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
   01-Jul-2002  12:04  5.0.2195.5917     333,072  Asp.dll          
   01-Jul-2002  12:04  5.0.2195.3649     299,792  Fscfg.dll        
   01-Jul-2002  12:04  5.0.2195.5255       8,464  Ftpctrs2.dll     
   01-Jul-2002  12:04  5.0.2195.5255       6,416  Ftpmib.dll       
   01-Jul-2002  12:04  5.0.2195.5255       9,488  Httpmib.dll      
   01-Jul-2002  12:04  5.0.2195.5255      13,584  Infoadmn.dll     
   01-Jul-2002  12:04  5.0.2195.5255     246,032  Infocomm.dll     
   01-Jul-2002  12:04  5.0.2195.5810      62,736  Isatq.dll        
   01-Jul-2002  12:04  5.0.2195.5255       7,440  W3ctrs.dll       
   01-Jul-2002  12:04  5.0.2195.5919     349,456  W3svc.dll        



Add a script mapping for the Web site.


Microsoft has confirmed that this is a problem in Microsoft Internet Information Services 5.0. This problem was first corrected in Microsoft Windows 2000 Service Pack 4.


For additional information about how to obtain a hotfix for Windows 2000 Datacenter Server, click the article number below to view the article in the Microsoft Knowledge Base:
265173 Datacenter Program and Windows 2000 Datacenter Server Product
For additional information about how to install multiple hotfixes with only one reboot, click the article number below to view the article in the Microsoft Knowledge Base:
296861 Use QChain.exe to Install Multiple Hotfixes with One Reboot


Article ID: 325571 - Last Review: October 26, 2013 - Revision: 3.4
  • Microsoft Internet Information Services 5.0
kbnosurvey kbarchive kbhotfixserver kbqfe kbwin2ksp4fix kbsecurity kbbug kbfix kbwin2000presp4fix kbwin2000sp3fix KB325571

Contact us for more help

Contact us for more help
Connect with Answer Desk for expert help.
Get more support from smallbusiness.support.microsoft.com