Microsoft small business knowledge base

Article ID: 933399 - Last Review: January 16, 2015 - Revision: 9.0

This article has been archived. It is offered "as is" and will no longer be updated.
This article has been archived. It is offered "as is" and will no longer be updated.

On This Page


Microsoft has released security bulletin MS09-010. To view the complete security bulletin, visit one of the following Microsoft Web sites.

How to obtain help and support for this security update

Help installing updates: Support for Microsoft Update (

Security solutions for IT professionals: TechNet Security Troubleshooting and Support (

Help protect your computer that is running Windows from viruses and malware: Virus Solution and Security Center (

Local support according to your country: International Support (

More information about this security update

Known issues with this security update

After you apply this security update, you may have to accept the Microsoft Software License Terms when you start a Microsoft Office XP program. If you do not accept the Microsoft Software License Terms, the Office XP program may not start.

The Html32.cnv file is installed from any one of the following sources:
  • Windows NT 4.0
  • Windows 2000
  • Windows Server 2003
  • Windows XP
  • Microsoft FrontPage 2002 (Html32.cnv only)
  • A version of Microsoft Office 2002 that includes Microsoft FrontPage 2002 (Html32.cnv only)
After you install this security update, the Html32.cnv, Mswrd832.cnv, and Msconv97.dll files may not be updated.

If Office is not installed, the Office update will not install on the computer if Office is not present. WordPad or Office will not use these converter files, although they remain present on the system.

By default, if Office is installed, the Mswrd832.cnv and Msconv97.dll files are installed only on first use by Office. The files in the TextConv location may not be the Office versions of the files but the operating system versions.

After you install this security update, the Mswrd832.cnv and Msconv97dll files may not be updated. However, the update will install the updated files in the MSOCache. The first time that you open a Word file, the updated converter will be installed into the TextConv location. This is by design.

HTML32.cnv: This file may not update if you are running a version of Office 2002 that does not include FrontPage.

This security update does not successfully install on Office XP Personal Edition, a release version of Office XP. However, security update MS09-073 supersedes this update for Office XP Personal Edition. We recommend that customers of Office XP Personal Edition install security update MS09-073 ( , which will help protect them against the vulnerabilities that are addressed by security bulletin MS09-010.

Am I still vulnerable after I apply this update?
No, WordPad uses the WPC files in the TextConv location to open files. When Office requests a relevant file to be loaded, the latest copy will be installed from MSOCache, which was updated by the security update.

Prerequisites to install this security update

To apply this security update, you must have Office XP Service Pack 3 (SP3) installed.

For more information about how to obtain this service pack, click the following article number to view the article in the Microsoft Knowledge Base:
307841  ( ) How to obtain the latest Office XP service pack

Removal information

To remove this security update, use Add or Remove Programs in Control Panel.

File information


The English (United States) version of this security update 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 item in Control Panel.
Collapse this tableExpand this table
File nameFile versionFile sizeDateTime

Applies to
  • Microsoft Office XP Professional Edition
  • Microsoft Office XP Small Business Edition
  • Microsoft Office XP Standard Edition
  • Microsoft Office XP Developer Edition
kbnosurvey kbarchive kbsurveynew kbsecvulnerability kbsecurity kbsecbulletin kbfix kbexpertiseinter kbbug atdownload KB933399
Additional support options
Ask The Microsoft Small Business Support Community
Contact Microsoft Small Business Support
Find Microsoft Small Business Support Certified Partner
Find a Microsoft Store For In-Person Small Business Support