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New browser add-on turns back IE's clock to 2001

Gregg Keizer | Nov. 3, 2010
Unibrows lets enterprises run IE6 as a tab inside IE8, gives them a way to migrate to Windows 7 without ditching old Web apps

FRAMINGHAM 3 NOVEMBER 2010 - A startup led by people who worked with and at Microsoft on Internet Explorer will soon release an add-on that lets customers run the aged IE6 within the newer IE8 browser.

The Unibrows add-on is aimed at companies that want to move off IE6 -- and the almost-as-old Windows XP -- to 2009's IE8 and a more modern operating system, such as Windows 7, said Matt Heller, the CEO of Washington-based Browsium.

"Companies need something simple that isn't virtualization based," said Heller. "Unibrows renders IE6 inside an IE8 tab without companies' having to change a single line of code in the sites or Web applications."

Even as Microsoft tries to put a stake in the heart of IE6, enterprises find it difficult, expensive and time consuming to dump the old program because IE8 often won't render sites designed specifically for the once-popular IE6, or won't work with IE6-era applications.

According to Gartner Research, IE6 compatibility problems will cause 1-in-5 organizations to take longer than expected or spend more than they budgeted for their Windows 7 migration projects. The problem: Approximately 40% of the Web applications used by companies still running IE6 won't work on IE8, the browser bundled with Windows 7.

Although one of Microsoft's recommended workarounds for enterprises that need to keep running IE6 is to use MED-V, the company's desktop virtualization system, Unibrows does not insert a virtualized version of the old browser into IE8. Instead, Browsium has licensed several DLLs, or dynamic-link libraries from Microsoft, to make the add-on render a site or application just as does a stand-alone version of IE6.

"We run as a local process on the machine," said Matt Crowley, the chief technology officer of Browsium. "[Unibrows] is a child process of IE8 and is triggered based on the rules [administrators have set]." At that point, Unibrows swaps in the IE6 DLLs to render the page or app within the tab.

Crowley was formerly a program manager on Microsoft's IE team, while Heller worked as a consultant for Microsoft on IE issues for more than six years.

The IE6-inside-IE8 add-on supports all the functionality of the real thing, including ActiveX controls designed for IE6, and the old browser's JavaScript rendering.

Company IT administrators can set access to IE6-specific sites and applications via group policies within IE8, giving them complete control over when IE8 mutates into IE6. The add-on works on any version of Windows that supports IE8, including XP, Vista and Windows 7.


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