Find security updates released after May 1, 2000 listed here, under Critical Updates. For security updates released prior to this date, please visit the Internet Explorer Security Area.

This update resolves the "Scriptlet Rendering" and "Frame Domain Verification" security vulnerabilities in Internet Explorer. Download now to prevent malicious web site operators from reading your files when you visit their sites. These vulnerabilities do not give a malicious user the ability to add, change, or delete files on your computer.

This update resolves the "Persistent Mail Browser Link," "Cache Bypass," and "Malformed E-mail Header" security vulnerabilities in Outlook Express. Download now to prevent a malicious user from reading e-mails and files on your computer, or using your computer to send damaging e-mails to others. These vulnerabilities do not give a malicious user the ability to add, change, or delete files on your computer.

For computers running Windows 2000 only. If you downloaded Internet Explorer 5.01 Service Pack 1 (SP1) from the Web between Thursday, July 6, 2000 and Tuesday, July 11, 2000, Microsoft recommends that you install this update today. The original offering of Internet Explorer 5.01 SP1 contains a known issue that causes Office® 2000 to display an error message when attempting to access Office Help. This update allows Office Help to be accessed without error.

This update resolves the "Active Setup Download" security vulnerability in an ActiveX control that ships as part of Internet Explorer. Download now to prevent a malicious Web site operator from overwriting files on your computer.

This release of the Microsoft VM (build 3193) primarily addresses security vulnerabilities and is described in the Microsoft Security Bulletin MS00-011.

This Year 2000 update addresses the issue which may occur when receiving an IMAP mail message or a News message with a 2-digit year as the sent date. It is recommended that you download and install this Year 2000 update.

For security updates released prior to May 1, 2000, please visit the Internet Explorer Security Area.

Download Internet Explorer 5.5 and Internet Tools. The newest version of Internet Explorer includes improved support for DHTML and CSS, giving Web architects greater control over browser appearance and behavior. You’ll also enjoy the ability to preview Web pages exactly as they’ll appear when printed. Internet Explorer 5.5 makes it easier than ever to connect to the Internet and find the information you need. Note If you are running Windows 95, Windows 98, or Windows NT® 4.0, installing Internet Explorer 5.5 will upgrade your computer to 128-bit encryption. If you are running Windows 2000, installing Internet Explorer 5.5 will not change the current level of encryption on your computer.

Internet Explorer 5.01 Service Pack 1 (SP1) provides the latest updates and security fixes to the Internet Explorer technology. Internet Explorer 5.01 SP1 can be installed as an upgrade to existing versions of Internet Explorer, or on computers with no previous Internet Explorer installation. Note If you are running Windows 95, Windows 98, or Windows NT® 4.0, installing Internet Explorer 5.01 SP1 will upgrade your computer to 128-bit encryption. If you are running Windows 2000, installing Internet Explorer 5.01 SP1 will not change the current level of encryption on your computer.

The Internet Explorer High Encryption Pack gives you 128-bit encryption, the highest level of protection possible whenever you use credit cards or make other financial or confidential transactions over the Internet. This site offers upgrades to your existing browser or an entirely new browser if you want. If you are running Windows 2000 and wish to upgrade to 128-bit encryption, you must download the Windows 2000 High Encryption Pack, do not install the Internet Explorer High Encryption Pack on a Windows 2000 computer. Note The Microsoft Internet Explorer High Encryption Pack is eligible for export from the U.S. to all customers worldwide, except to U.S. embargoed destinations.

This high encryption pack lets you update your installed Windows 2000 with the highest available encryption level. You cannot remove 128-bit encryption after you complete the conversion process. You must be an administrator to install the High Encryption Pack on your computer. Note The Windows 2000 High Encryption Pack is eligible for export from the U.S. to all customers worldwide, except to US embargoed destinations.

This package provides support to display Johnson-Grace compressed images, or .ART files, most commonly used by America Online. If you are an America Online user running Windows 2000, this is a required upgrade.

The most up-to-date version of Internet Explorer available for Compaq DIGITAL Alpha computers and computers running Windows 3.1, Windows NT 3.51, and UNIX. All UNIX versions of Internet Explorer currently available on this site give you 128-bit encryption, the highest level of protection possible whenever you use credit cards or make other financial or confidential transactions over the Internet. Note Internet Explorer with 128-bit encryption is eligible for export from the U.S. to all customers worldwide, except to U.S. embargoed destinations.

Visit this site to select downloads in the language of your choice.

The newest version of Microsoft's toolkit for customizing and distributing Internet Explorer offers major improvements in ease of use.

Download this pack to make your Web browsing easier. Search the Web quickly, customize the way you view Web pages, use a shortcut to page links, and more. Choose the accessory you want from the Links bar or with a right-click of your mouse.

Internet Explorer 4.01 with Service Pack 2 addresses top issues reported to Microsoft Technical Support regarding Internet Explorer 4.01 and includes all security updates which have been released since Service Pack 1. Note Users who have installed Internet Explorer 5 or greater are not vulnerable to the issues addressed by Internet Explorer 4.01 Service Pack 2.

Download Internet Explorer 4.01. There are no Service Pack releases available for Internet Explorer 4.01 for computers running Windows 3.1, Windows NT 3.51, or UNIX (Solaris or HP-UX). To minimize exposure to known security issues, Microsoft recommends that you install Internet Explorer 5. All UNIX versions of Internet Explorer currently available on this site give you 128-bit encryption, the highest level of protection possible whenever you use credit cards or make other financial or confidential transactions over the Internet. Note Internet Explorer with 128-bit encryption is eligible for export from the U.S. to all customers worldwide, except to U.S. embargoed destinations.

Internet Explorer 4.0 offers a host of suite components and add-ons to enhance your experience on the Internet.

Internet Explorer 4.0 introduced an extensibility feature allowing developers to create enhancements to Internet Explorer. The Internet Explorer 4.0 PowerToys are a collection of our favorite enhancements.
NOTE: Great care has been taken to ensure that the PowerToys below operate as they should. But keep in mind that these tools are not a part of Internet Explorer 4.0 and are not supported by Microsoft. For this reason, Microsoft Technical Support is unable to answer questions about them.

Enable Internet Explorer to display Web content using Pan-European (Central European, Cyrillic, Greek, Turkish, and Baltic) language characters.

Download Windows NetMeeting and turn your PC into a videophone to see and talk to family or friends. At work, hold business meetings online and collaborate on documents over your company network or the Web.

Communicate in chat rooms on the Internet. In the optional 'comic-strip' mode, let your true feelings be known by choosing your own character and facial expressions.

Download Internet Explorer 5.5 Advanced Security Privacy Beta to manage cookies and maintain a higher degree of security and privacy than you ever have before. Now, you can configure your browser settings to differentiate between cookies that originate on a Web page and those that are sent to a Web page. A new Help Menu item provides an overview section and important links to information about Internet Explorer's security and privacy features.