IEBlog

Windows Internet Explorer Engineering Team Blog

  • IEBlog

    IE Developer Toolbar Beta 3 - Now Available

    • 134 Comments
    We’re happy to announce the availability of a new beta of the IE Developer Toolbar . Along with all the features available previously this release contains some new features to improve the usability and help web designers troubleshoot issues on their pages. User Interface Update . You’ll notice some changes to the user interface. There is now a single button on the IE command bar that allows the user to quickly toggle on and off the bottom panel which then gives easy access to all the features. After...
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    IE8 Security Part V: Comprehensive Protection

    • 128 Comments
    Hi! I’m Eric Lawrence, Security Program Manager for Internet Explorer. Last Tuesday, Dean wrote about our principles for delivering a trustworthy browser ; today, I’m excited to share with you details on the significant investments we’ve made in Security for Internet Explorer 8. As you might guess from the length of this post, we’ve done a lot of security work for this release. As an end-user, simply upgrade to IE8 to benefit from these security improvements. As a domain administrator, you can use...
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    IE8 and Loosely-Coupled IE (LCIE)

    • 55 Comments
    Hi, my name is Andy Zeigler, and I’m a Program Manager on the Internet Explorer Foundations team. I’d like to tell you about a new IE8 feature called Loosely-Coupled IE, or LCIE for short. Essentially, LCIE is a collection of internal architecture changes to Internet Explorer that improve the reliability, performance, and scalability of the browser. It also paves the way for future improvements in other areas, including security and usability. To do this, we’ve isolated the browser frame and...
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    The IE10 User-Agent String

    • 50 Comments
    We recently announced IE10 Platform Preview 1 . Aside from some exciting new features , this platform preview also includes the new IE10 user-agent string : Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; Trident/6.0) Overall this represents a natural evolution of the IE9 user-agent string with only two changes: The value of the “MSIE” token is now “10.0” The value of the “Trident” token is now “6.0” Also, Compatibility View still maps to IE7...
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    IE’s Compatibility Features for Site Developers

    • 36 Comments
    Site developers have been clear that they want interoperability and standards compliance (or “Same markup”) for newer technologies as well as backward compatibility for their existing sites. After reading questions and comments on the last few compatibility-related blog posts , I thought now is a good time to recap IE’s compatibility features for site developers. As IE changes and supports new technologies, developers will still want, in some scenarios, IE’s legacy behavior...
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    Beta 3 UX Improvements

    • 359 Comments
    Hi everybody, Max here. I posted before about " A New Look for IE ” back when we released the beta 2 preview, and with the launch of beta 3, I wanted to take a moment to tell you about some of the new functionality we have added and changes we have made specifically related to your feedback. First and foremost, let me thank everybody who has put the time and effort towards giving us feedback, whether it’s through our connect site , participating in our monthly online chats , talking with us at...
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    Testing Multiple Versions of IE on One PC

    • 77 Comments
    Previous posts described the importance of developing sites with feature detection and debugging a site’s behavior in older versions of Internet Explorer using IE’s browser and document modes . Testing production Web sites against multiple browsers and multiple browser versions is a reality of Web development. IE9’s emulation of older IE document modes makes this easier but those emulations are not exact. Some developers need a convenient way to run multiple versions of Internet Explorer on one PC...
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    Launch Options for Internet Explorer 10 on Windows 8

    • 52 Comments
    IE10 is a new browsing experience built in lockstep with Windows 8 to give you all the advantages that Metro style applications offer. We built that experience by extending IE’s underlying architecture to provide a fast, fully hardware accelerated browsing engine with strong security and support for HTML5 and other Web standards. IE10 also includes a desktop experience for when you are using desktop tools and wish to continue using them in your existing workflows. Following last September...
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    The Internet Explorer 8 User-Agent String

    • 207 Comments
    As Dean announced , a beta version of Internet Explorer 8 will be released in the first half of 2008. The HTTP headers of every web request contain a simple string called the "User-Agent" that allows servers to identify the type and version of the visitor’s browser. For a deeper understanding of the User-Agent string, please see Understanding User-Agent Strings . When released, the IE8 beta will introduce an updated User-Agent string. For IE8, we’ve simply replaced "MSIE 7.0" with "MSIE 8.0...
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    Internet Explorer Administration Kit and Group Policy in IE7

    • 28 Comments
    I am a program manager on the Internet Explorer team and in this post I would like to share what we are doing in the manageability, customization and deployment space. The two key features are IEAK 7 - The Internet Explorer Administration Kit , and GP - Group Policy in Internet Explorer 7. Before going on to IEAK & GP, I want to briefly talk about some terms I have used ahead - Deployment - The process of distributing and installing a software program on a number of machines. This becomes...
  • IEBlog

    IE8 and Reliability

    • 122 Comments
    Developing technologies that work reliably on their own and as part of the computing ecosystem is core to our mission and is an important part of our commitment to Trustworthy Computing. Our customers and partners expect technologies and services they can depend on anytime, anywhere, and on any device. We focus on constant improvements to the dependability of our technologies and services. For Internet Explorer, reliability means that the browser should always start quickly, perform well, connect...
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    HTML5, Modernized: Fourth IE9 Platform Preview Available for Developers

    • 280 Comments
    IE9 started from the premise that the modern web will deliver HTML5 experiences that feel more like native applications than sites. Building on hardware-accelerated SVG, canvas, video , audio, and text, developers will use the power of the whole PC to achieve great performance. On the modern web, developers will use the same markup across different HTML5 browsers. With IE9, we have worked much more closely with the developer community. Developers have had an earlier (and more frequently updated...
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    IE8 Security Part I: DEP/NX Memory Protection

    • 40 Comments
    Hi, I’m Eric Lawrence from the Internet Explorer Security Team. With the RSA security conference kicking off this week, I wanted to start sharing more information about the security features and benefits of Internet Explorer 8 Beta 1. Over the next several weeks, we’ll blog in greater detail about some of the security improvements in Beta 1, such as the new Safety Filter, greater control over ActiveX controls, and new AJAX features for safer mashups (XDomainRequest and XDM). This is not a complete...
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    Internet Explorer 7 Beta 2 (and more) Available

    • 279 Comments
    This evening we released IE7 Beta 2 at http://www.microsoft.com/ie . This release is not the preview or the update to the preview, but the real Beta 2 of IE7 for Windows XP SP2, Windows Server 2003 SP1, and Windows XP 64-bit Edition. Simply: please try it. We acted on a lot of the feedback and bug reports from the previous public releases. In particular, I feel good about changes we made based on reports from web developers around some CSS behaviors, application compatibility feedback, reliability...
  • IEBlog

    Internet Explorer 8 Beta 2 Now Available

    • 304 Comments
    We’re excited to release IE8 Beta 2 today for public download. You can find it at http://www.microsoft.com/ie8 . Please try it out! You’ll find versions for 32- and 64-bit editions of Windows Vista, Windows XP, Windows Server 2003, and Windows Server 2008. In addition to English, IE8 Beta 2 is available in Japanese, Chinese (Simplified), and German. Additional languages will be available soon. While Beta 1 was for developers, we think that anyone who browses or works on the web will enjoy IE8...
  • IEBlog

    TLS and SSL in the real world

    • 48 Comments
    Quite a bit has been written about the Secure Sockets Layer (SSL) protocol and its successor Transport Layer Security (TLS), so I won't cover the protocols in detail here. The following are good references if you want to get a quick refresher. Microsoft KB article describing the SSL Handshake Wikipedia Overview of TLS Happily, a majority of web users now know to look for the lock icon and the HTTPS in the address line to identify when their connection is secure. Unfortunately, relatively...
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    More IE8 Extensibility Improvements

    • 25 Comments
    We’ve made a few improvements to our extensibility model in IE8 RC1 based on feedback we’ve received both internally and externally. WebBrowser (WebOC) Rendering Mode Changes About a year ago, I posted an entry talking about WebBrowser Control Rendering Modes in IE8 . You may recall that applications using the WebBrowser Control (also known as the WebOC, or Trident hosts) can use a Feature Control Key to select the default rendering mode of webpages they load. Since our release of IE8 Beta...
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    A Note about the DHTML Editing Control in IE7+

    • 73 Comments
    Hi, I’m B. Ashok, the Product Unit Manager for Web Development Tools – we have our own team blog ( http://blogs.msdn.com/webdevtools ), but I wanted to post over here to discuss a change my team has made which has an effect on users of IE7+ in Windows Vista. Specifically, we are removing the DHTML Editing Control from the Windows Vista product. The DHTML Editing Control shipped in Windows XP and Windows 2003 Server, in a file called dhtmled.ocx. This file contained two flavors of the control:...
  • IEBlog

    The First Year of IE7

    • 394 Comments
    It’s been a little over a year since we released IE7 on Windows XP and for Windows Vista, so I thought it would be worthwhile to talk about where we are after the year. According to internal Microsoft research based on data from Visual Sciences Corporation, there are over 300 million users are experiencing the web with IE7. This makes IE7 the second most popular browser after IE6. IE7 is already #1 in the US and UK, and we expect IE7 to surpass IE6 worldwide shortly. Perhaps more important...
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    What’s New for CSS in Beta 2 Preview?

    • 227 Comments
    We have heard all your feedback asking us for full CSS compliance. With the now public available Beta 2 Preview build on XP, we get a big step closer to this goal. Chris talked about our priorities for IE7 before , but I want to give more detail on our work with CSS. We had 3 objectives, in priority: Fix some really nasty bugs posted on sites like positioniseverything.net Revise parts of our existing CSS implementation to be true to the spec Add the most-requested new CSS functionality...
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    IE8 Security Part II: ActiveX Improvements

    • 65 Comments
    Hi, I’m Matt Crowley, Program Manager for Extensibility with Internet Explorer. The team was very excited to be at the RSA security conference last month discussing the security features of Internet Explorer 8 Beta 1. In this, the second part of the IE8 Security blog series, I describe the ActiveX improvements in IE8 and summarize the existing ActiveX-related security features carried over from earlier browser versions. Per-User (Non-Admin) ActiveX Running IE8 in Windows Vista, a standard user...
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    Must Have Add-Ons for IE7

    • 69 Comments
    With your freshly installed Internet Explorer 7, take time to explore our library of add-ons. The IE Add-Ons website has over 400 add-ons registered to date, and many more are on the way. The IE7 team took the last few weeks (in between last minute bug fixes) to collect our must-have list below. All of the add-ons in our list are free to download, integrate well with IE7, and provide extraordinary functionality. Stay Safe and Secure: Windows Defender is a must-have for anyone concerned about spyware...
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    Uninstalling IE7 Beta Releases

    • 116 Comments
    We’ve noticed questions/comments/confusion about uninstalling IE7 so I wanted to highlight one of our FAQs and add a little more detail. Uninstalling IE7 will leave you with a fully-functional IE6 and allow you to install the latest release, IE7 Beta 3 , which we recommend for all IE7 beta users so they benefit from the latest bug fixes and security updates. To uninstall Internet Explorer 7 Beta 2, Beta 2 Preview, or Beta 1: Click "Start", and then click "Control Panel" Click "Add...
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    ECMAScript 3 and Beyond

    • 101 Comments
    There have been a number of blog posts recently about JavaScript developments, e.g. Gabriele Renzi’s " ECMAScript 4, the fourth system syndrome ". For ECMAScript, we here on the IE team certainly believe that thoughtful evolution is the right way to go; as I've frequently spoken about publicly, compatibility with the current web ecosystem - not "breaking the Web" - is something we take very seriously. In our opinion, a revolution in ECMAScript would be best done with an entirely new language, so...
  • IEBlog

    HTML5, Native: Third IE9 Platform Preview Available for Developers

    • 215 Comments
    As developers experiment and begin the transition from writing today’s websites to building HTML5 applications, they will test the limits of browsers. For example, the huge difference between hardware accelerated HTML5 video and plain HTML5 video support in a browser was clear in the demo we showed at MIX . Because some browsers run on many different operating systems, there can be a tendency to use a “least common denominator” approach to implementing HTML5. By using more of...
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