• technologies for user access including a new XML-based, browser-resident compound information architecture called Universal Canvas;
• infrastructure and development tools based on the Windows DNA 2000 architecture;
• a family of building-block services to perform functions such as authentication, messaging, storage, search and software delivery
• and finally an array of enabling software for client devices.

• Notification and messaging, which will be built on a combination of Hotmail, Exchange and Instant Messenger technology
• Online storage not only of data, but also of authentication and personalisation information and XML data transformation definitions
• Directory services, calendaring and search

However Microsoft's own line of end user products and services will standardise on the company's own infrastructure offerings, led by Windows .Net, the next generation of the Windows user interface platform, scheduled for a version 1.0 release next year, with a richer version following at least a year later. The tight integration between Windows.Net and online services implies that Web browser functionality will be an integral part of the client platform.

For developers, Visual Studio.NET will offer an XML-based programming model and rapid application development for the new environment.

Service portfolio

The remainder of Microsoft's current line-up will become services - most notably Office.Net, which is to offer knowledge workers a personalised, device-independent environment for accessing resources and collaboration services.

Extending its initial forays into becoming an application service provider in its own right, Microsoft is to offer a portfolio of premium subscription services to consumers, building on its existing range of entertainment, games, education and productivity products.

It will expand its bCentral small business portal to offer several services based on the .NET platform. They include hosted catalogues and related e-commerce services, new Internet-based customer relationship management tools, and a range of email and personal information management services using a Web-based version of Outlook.

Finally, the MSN consumer Internet portal service will become MSN.Net, providing an alternative means for consumers to access .Net services. MSN.Net already has its own integrated client currently in beta testing, the company revealed.

Many other elements of the strategy remain firmly on the drawing board at this stage, however. CEO Steve Ballmer was careful to stress the long timescale over which the .Net strategy will be delivered.

"This is a long-term road map," he said. "There are short-term deliverables, but this transformation, not just for us, any kind of transformation like the one that we're describing in the Internet will not happen in six months or a year, or two years. There's a lot of work that needs to happen. We know we need to have the same kind of long-term approach and patience that we had with Windows itself."