Update available for HTML script vulnerability

Microsoft has released an update that eliminates a security vulnerability in Microsoft Excel 2000 and PowerPoint 2000. This update, the Excel and PowerPoint 2000 SR-1 Add-In Security Update, eliminates a security vulnerability that could allow unsafe scripts to be run in Microsoft Excel 2000 or Microsoft PowerPoint 2000 when you view a Web page or HTML e-mail message. To prevent unsafe scripts from running, this update makes changes to the registry and eliminates the ability to run unsafe Excel or PowerPoint scripts by using the Internet Explorer Object Model.

NOTE: To use the Excel and PowerPoint 2000 SR-1 Add-In Security Update, you must first install Office 2000 SR-1 or Office 2000 Service Release 1a (SR-1a).

System administrators can find additional information and the administrator version of this update at the following Microsoft Web site:
To learn more about the Excel and PowerPoint 2000 SR-1 Add-In Security Update, please see the Microsoft Security Bulletin MS00-049: Frequently Asked Questions.

NOTE: There are two separate updates: one for both PowerPoint 2000 and Excel 2000, and the other for Microsoft PowerPoint 97. Microsoft Excel 97 is not affected by this vulnerability. For more information about the Microsoft PowerPoint 97 version of this update, click the following article number to view the article in the Microsoft Knowledge Base:

How to download and install the update

IMPORTANT: Follow these steps to download and install the update:

1. Point your Web browser to the following Web site:
   http://www.microsoft.com/downloads/details.aspx?FamilyID=5c011c70-47d0-4306-9fa4-8e92d36332fe&DisplayLang=en
2. Click Download. Click Save, and then click OK.
3. Click Save to save the O2kSp3.exe file to the selected folder.
4. In Windows Explorer, double-click O2kSp3.exe.
5. Click Yes when you are asked whether to install this update.
6. Click Yes to accept the License Agreement.
7. If you are prompted to insert your Office 2000 CD, do this, and then click OK.
8. Click OK in the alert that indicates that the installation was successful.

Files contained in the O2kSp3.exe download

If you download O2kSp3.exe and manually extract the files by using a command line similar to the following: the following files will be listed in the C:\Addinsec folder:

How to verify that the update is successful

To verify whether the installation of the update was successful, you can check that the version of the Excel.exe file on your system is equal to or later than 9.0.4307. By default, Excel.exe is in the following location on your computer:

For more information, click the following article numbers to view the articles in the Microsoft Knowledge Base: