They include Microsoft's new presentation subsystem, Avalon, and its web services-based communication subsystem, Indigo.
Microsoft had previously released pre-beta community technology previews of Avalon and Indigo to selected developers for review.
In addition, the company has made available a beta technology for end-user identity management, called Infocards.
A single-sign-on technology, Infocards allows users to gain secure access to all authorised websites and applications without having to use multiple log-ins.
Unlike Microsoft's proprietary Passport system, Infocards is based on WS-I interoperability standards, supported by Sun and other major suppliers.
Sun Microsystems and Microsoft earlier this month announced they would be jointly developing identity management systems, but Infocards is purely a Microsoft product.
Avalon and Indigo are part of Microsoft's WinFX programming model, the next development of the .net Framework. WinFX will also be the development foundation for Longhorn, due in 2006.