Microsoft has released a security rollup for Internet Explorer 5.5 that includes fixes for the following problems:

•	The problem that is described in the following Microsoft Knowledge Base article: 286045 (http://support.microsoft.com/kb/286045/EN-US/) Patch Available for Cached Content Identification Vulnerability
•	The problem that is described in the following Microsoft Knowledge Base article: 290108 (http://support.microsoft.com/kb/290108/EN-US/) Incorrect MIME Header Can Cause Internet Explorer to Run E-mail Attachment
•	The problem that is described in the following Microsoft Knowledge Base article: 299472 (http://support.microsoft.com/kb/299472/EN-US/) Internet Explorer Vulnerability Affects the Way Digital Certificates from Web Servers Are Validated
•	The problem that is described in the following Microsoft Knowledge Base article: 299474 (http://support.microsoft.com/kb/299474/EN-US/) Internet Explorer Vulnerability Affects the Displayed URL for a Web Page
•	The problem that is described in the following Microsoft Knowledge Base article: 281119 (http://support.microsoft.com/kb/281119/EN-US/) Internet Explorer Saves HTML Content Instead of the Active Document
•	Two new variants of a previously discussed vulnerability, the "Frame Domain Verification" vulnerability, which was originally discussed in Microsoft Security Bulletin MS00-033 (http://www.microsoft.com/technet/security/bulletin/ms00-033.mspx). Like the original version, the new variants of the vulnerability may allow a malicious Web site operator to open two browser windows, one in the Web site's domain and the other on the user's local file system, and to pass information from the user's local file system to the Web site's domain. This vulnerability may allow the malicious Web site operator to read any file that can be opened in a browser window on the user's local computer.

For more information about these vulnerabilities, view the following Microsoft Web site:

The security rollup is available in Internet Explorer 5.5 Service Pack 2. For additional information about the latest service pack for Internet Explorer 5.5, click the article number below to view the article in the Microsoft Knowledge Base: The security rollup is also available as an individual download: For additional information about how to download Microsoft Support files, click the following article number to view the article in the Microsoft Knowledge Base: Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help to prevent any unauthorized changes to the file. NOTE: This patch requires Internet Explorer 5.5 Service Pack 1 (SP1).

The English-language version of this patch should have the following file attributes or later:

   Date        Time    Version         Size       File name  
   ----------------------------------------------------------
   04/02/2001  05:28p  5.50.4616.200   2,748,688  Mshtml.dll
   02/20/2001  05:36p  5.50.4614.2000  1,147,152  Shdocvw.dll
   01/24/2001  02:56p  5.50.4701.2400    456,464  Urlmon.dll
   04/02/2001  05:28p  5.50.4616.200     480,528  Wininet.dll