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MS12-027: Description of the security update for Microsoft Office 2003 Service Pack 3: April 10, 2012

Support for Office 2003 has ended

Microsoft ended support for Office 2003 on April 8, 2014. This change has affected your software updates and security options. Learn what this means for you and how to stay protected.

Microsoft has released security bulletin MS12-027. To view the complete security bulletin, visit one of the following Microsoft websites:

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

Known issues with this security update
  • You install this security update on a computer that has a third-party software solution installed. The software solution is based on Microsoft Visual Basic for Applications (VBA). The software solution creates an instance of the control directly through Microsoft Office. In this scenario, the control may not load in your solution.

    To resolve this issue, delete the cached versions of the control type libraries (extender files) on the client computer. To do this, search your hard disk for files that have the ".exd" file name extension and delete all the .exd files that you find. These .exd files will be re-created automatically when you use the new controls the next time that you use VBA. These extender files will be under the users' profile and may also be in other locations, such as the following: 
    C:\documents and settings\username\Application Data\Microsoft\Forms

    C:\documents and settings\username\AppData\Local\Temp\VBE

Prerequisites to apply this security update

To install this security update, you must have Microsoft Office 2003 Service Pack 3 installed on the computer.

For more information about how to obtain the service pack, click the following article number to view the article in the Microsoft Knowledge Base:
307841 How to obtain the latest service pack for Office 2003

Restart information

You do not have to restart the computer after you install this security update.

Security update replacement information

This security update does not replace a previously released security update.

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.
For Microsoft Office 2003 Service Pack 3
FilesVersion SizeDateTime
MSCOMCTL.OCX 6.01.9833 10703524-Nov-1114:13
update security_patch security_update security bug flaw vulnerability malicious attacker exploit registry unauthenticated buffer overrun overflow specially-formed scope specially-crafted denial of service dos

Article ID: 2597112 - Last Review: 04/10/2012 17:03:00 - Revision: 1.0

  • Microsoft Office 2003 Service Pack 3
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