This update eliminates all known security vulnerabilities affecting Internet Explorer 5.5 Service Pack 2 (SP2) and Internet Explorer 6, and addresses the "Incorrect Content-Disposition Handling Can Cause IE to Execute Code Automatically" security vulnerabilities in Internet Explorer 5.5 SP2 and 6, and is discussed in Microsoft Security Bulletin MS01-058. Download now to protect your computer from all previously discussed security vulnerabilities affecting Internet Explorer 5.5 SP2 and 6, as well as three newly discovered vulnerabilities: the File Execution vulnerability, a variant of the Frame Domain Verification vulnerability, and the File Name Spoofing vulnerabilty. Internet Explorer Security Update: December 2001