The prototype, which will be demonstrated at the MIX07 conference in Las Vegas today, will give an insight into how BBC Radio 1 would work in the future, as it builds its interactive functions.
Under the new technology the site could compete against other commercial offerings, with users able to create an online "badge" or profile of their favourite bands, music, shows and picture playlists, which they can share with friends via Windows Live Messenger service.
BBC Radio 1 said the benefits of using the technology were that it could more accurately reflect listener demands and preferences, and offer "more participatory" online services.
It is understood that BBC Radio 1 online was chosen to test the technology as it provided the best fit for its intended audience, which is expected to comprise listeners and users under the age of 25.
The technology has been developed using Microsoft Silverlight software and the latest Windows Live Messenger application, in conjunction with Siemens, AKQA and Ioko.
The BBC signed a deal with Microsoft in September last year to create a strategic partnership for the corporation's digital strategies. The agreement, which was signed by BBC director-general Mark Thompson and Microsoft chairman Bill Gates, is part of the BBC's development of next-generation technology.
Jason DaPonte, executive producer of www.bbc.co.uk, said: "As the user's online footprint expands, Radio 1 would be able to recognise [people's] tastes and offer them even more of what they like.
"Prototypes such as this illustrate the BBC's commitment to providing online services that are more open, personal and participatory than ever before, using the latest technologies to engage younger audiences."