Microsoft moves on AJAX

Microsoft has released a beta version of its AJAX (Asynchronous JavaScript and XML) programming technology, formerly code-named Atlas and now called Microsoft ASP.Net AJAX v1.0.

AJAX has become a popular technique for building rich Internet applications. Microsoft's offering in this arena is the former Atlas technology.

The beta offering is available in three download options, said Scott Guthrie, a general manager in the Microsoft Developer Division, in his blog ( These include the following:

-- A "Core" download, with features to be fully supported by Microsoft including the core AJAX-type system, networking stacking, and component model.

-- A "Value-Add" CTP download with higher level features that were in previous community technology preview but not fully supported in the 1.0 core. Over time, features will be moved into the core download.

-- A Control Toolkit, with 28 free controls built on top of the core download.

The beta features several changes in areas such as performance and download size optimizations, the addition of Safari browser support, better debugging, UpdatePanel improvements, and enhancements to the client script library stack. Better compatibility with other AJAX libraries also is featured. A license will be provided to allow custom modifications of the libraries.

"Previous ASP.Net AJAX CTPs (community technology previews) relied on the browser downloading a single large, JavaScript file to the browser that contained all of the features, Guthrie said. "With this beta release we have spent a lot of time on factoring out features into multiple files, so you don't have to download them unless you use them, and in optimizing the bandwidth size of the overall library."

"We are really looking forward to having lots of people use the Beta and to getting more feedback," Guthrie said. A beta refresh is due in a few weeks that will incorporate customer feedback, he said.

The beta is downloadable here ( The general release of the technology is planned for the end of this year and will work with Microsoft's Visual Web Developer 2005 Express Edition and free Web development IDE as well as with Visual Studio 2005.

Join the newsletter!


Sign up to gain exclusive access to email subscriptions, event invitations, competitions, giveaways, and much more.

Membership is free, and your security and privacy remain protected. View our privacy policy before signing up.

Error: Please check your email address.
Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

Paul Krill

Show Comments

Father’s Day Gift Guide

Brand Post

Bitdefender 2019

Bitdefender solutions stop attacks before they even begin! Get cybersecurity that 500 MILLION users already have and trust.

Most Popular Reviews

Latest Articles


PCW Evaluation Team

Luke Hill


I need power and lots of it. As a Front End Web developer anything less just won’t cut it which is why the MSI GT75 is an outstanding laptop for me. It’s a sleek and futuristic looking, high quality, beast that has a touch of sci-fi flare about it.

Emily Tyson

MSI GE63 Raider

If you’re looking to invest in your next work horse laptop for work or home use, you can’t go wrong with the MSI GE63.

Laura Johnston

MSI GS65 Stealth Thin

If you can afford the price tag, it is well worth the money. It out performs any other laptop I have tried for gaming, and the transportable design and incredible display also make it ideal for work.

Andrew Teoh

Brother MFC-L9570CDW Multifunction Printer

Touch screen visibility and operation was great and easy to navigate. Each menu and sub-menu was in an understandable order and category

Louise Coady

Brother MFC-L9570CDW Multifunction Printer

The printer was convenient, produced clear and vibrant images and was very easy to use

Edwina Hargreaves

WD My Cloud Home

I would recommend this device for families and small businesses who want one safe place to store all their important digital content and a way to easily share it with friends, family, business partners, or customers.

Featured Content

Product Launch Showcase

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?