Article ID: 267580 - View products that this article applies to.
This article was previously published under Q267580
For information about the differences between Microsoft Outlook Express and Microsoft Outlook e-mail clients, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/257824/EN-US/ )OL2000: Differences Between Outlook and Outlook Express
This article provides general information about the Microsoft Outlook Express Security Patch that was released on July 20, 2000.
The Outlook Express Security Patch provides additional levels of protection against malicious e-mail messages. For general information about this patch, please see the following Microsoft Web site:
http://www.microsoft.com/technet/security/bulletin/MS00-043.mspxTo download the patch, please see the following Microsoft Web site:
http://www.microsoft.com/windows/ie/download/critical/patch9.htmIf you have installed Microsoft Internet Explorer 5.01 Service Pack 1 (SP1) or Microsoft Internet Explorer 5.5 on a computer that is running any operating system other than Microsoft Windows 2000, you are not affected by these vulnerabilities and do not need to apply the patch.
FixesThe following potential vulnerabilities are fixed when you apply this patch:
Buffer Overflow in Outlook Express Mail Header
Java Script in the Preview PaneIf you use the preview pane to view a message that contains Java Script, the script can read subsequent e-mail messages that have been opened.