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November 20, 2004

Microsoft Releases Avalon Technology Preview for Windows Server 2003, Windows XP

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Late Friday, Microsoft quietly released to Microsoft Developer Network (MSDN) Subscriber Downloads a technology preview of the Avalon presentation technologies portion of the WinFX software development kit (SDK). The preview contains some Avalon features that Microsoft designed solely for Longhorn (the next major Windows release) but will also run on Windows Server 2003 and Windows XP. Microsoft was quick to warn developers that the release isn't a full beta version but is an early look at Avalon technology only, one that the company hopes will garner a lot of feedback.
  
"This is a 'Technology Preview,' or rough bits," Chris Anderson, a software architect on the Avalon team said Friday in his blog (see the first URL below). "I don't recommend [that] you put this on your primary development machine. You need a pretty beefy machine to run the bits. This build will run on Windows XP. This build will not run on [the] PDC or WinHEC Longhorn builds. This is not the final API set, XAML spec, or anything else--this is a 'Technology Preview.'"
  
Microsoft originally envisioned Avalon as one of the core Longhorn pillars, along with related technologies such as Aero (the Longhorn UI), WinFS (a relational database-based storage engine), and Indigo (a Web services infrastructure). But in third quarter 2004, Microsoft decided to back-port both Avalon and Indigo--and the WinFX programming libraries used to access them--to Windows 2003 and XP. I've written about this decision and its ramifications in a detailed article on the SuperSite for Windows (see the second URL below).
  
This technology preview isn't the first time that Microsoft has made Avalon code publicly available. The first public release took place in October 2003 at the Microsoft Professional Developers Conference (PDC), when Microsoft first introduced working Longhorn code to programmers. Then, earlier this year at Windows Hardware Engineering Conference (WinHEC) 2004, the company released a second public release of Avalon code. But Friday's preview is the first public release of Avalon code that will run on Windows 2003 and XP. Microsoft says that the difference between running Avalon on Windows 2003 and XP and running it on Longhorn, eventually, will be performance. Because Longhorn will include a more advanced graphics engine and will be able to take better advantage of modern graphics hardware, Avalon code will run faster on Longhorn than it does on Windows 2003 and XP. The interfaces for accessing Avalon on Longhorn or on Windows 2003 and XP, however, will be identical.
  
MSDN subscribers who want to access the Avalon technology preview should log on to Subscriber Downloads and navigate to Tools, SDKs, and DDKs; Platform Tools, SDKs, and DDKs; WinFX SDK--Community Technology Preview. Based on recent conversations I've had with various Microsoft representatives, you can also expect a similar technology preview for Indigo in the days ahead.
  
According to MSDN, the Microsoft WinFX SDK requires Microsoft .NET Framework v2.0 Beta 1 and the Avalon Community Technology Preview. To use Visual Studio (VS) 2005 Beta 1 to develop Avalon applications, you must install VS 2005 prior to installing the WinFX SDK, the site notes.

Avalon CTP Released!!!

The Road to Windows "Longhorn" 2004

End of Article



Reader Comments
Pleaseclick on the "Contact Us" link below to lodge a complaint about this darn web site's insistence on MICRODOT font sizes. If enough people complain maybe they'll fix it.

DonnEdwards November 20, 2004 (Article Rating: )


How about you contact the tech support for your web browser? The font size is perfect on mine.

Anonymous User November 20, 2004


Indigo was always planned to be supported on WinXP/Server 2003 - only WinFS and Avalon were Longhorn specific.

Anonymous User November 21, 2004


Donn, If you cant read the writing and you have a wheel on your mouse, hold Ctrl and scroll up using the wheel. :)

Anonymous User November 21, 2004


The point is, you shouldn't have to adjust the font size on a particular site. They need to fix it for people using a browser other than Internet Explorer.

Anonymous User November 21, 2004


Why do they want it so darn small in the first place? The text on the front page is like 7-8pt. Newspapers do classified ads that size, but not across half a page, only across a narrow column. The technies who design web sites have obviously forgotten why newspapers have narrow columns: to make it easier to read. It's called GOOD LAYOUT PRACTICE. And the layout of this web site breaks that simple rule.

Anonymous User November 22, 2004


If TIME magazine kept is font size but only had one column per page, whould you be able to read it? I don't think so.

Anonymous User November 22, 2004


Gosh, the font size has changed from MICRODOT to VERY SMALL in Firefox. It's almost readable but not quite.

Anonymous User November 22, 2004


I think Firefox is the best ever, with winamp!

Anonymous User November 22, 2004


I suspect you have some other problem with your system because this looks just fine in IE and Firefox on my system

Anonymous User November 22, 2004


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