Active Internet's Digital Rights Management  
(DRM) is based on the Microsoft ® Windows Media™ Rights Manager that uses a license key to lock digital media files. 

The license key offers content protection even if the files are widely distributed. Every license is uniquely assigned to each computer. This prevents illegal distribution of digital media files. In fact, with the WMRM, you can encourage users to freely pass out the files, because as soon as someone tries to play them, they are directed to the license server for registration. Listed below of some of the features of the DRM system.

1. Secure End-to-End Streaming and Downloads
Through secure cryptographic protocols; digital media files are protected during download and on the consumer's PC.

2. Separately Distributed Licenses and Media
The digital media files and the licenses are issued independently. This allows maximum flexibility and allows wide distribution of content. When a digital media file is played, the Rights Manager checks to see if the consumer's computer has a license. Consumers without a valid license are directed to a license registration/payment page. Furthermore, additional licenses can be applied to the content after they have been distributed. The next time the consumer connects with the license server, the additional licensing choices are now available.

3. Easy-to-Change Licensing Terms
Since digital media and licenses are issued separately, licensing terms can be changed on the fly.

4. Innovative Rental or Subscription Models
The rules that can be applied to the licensed content are virtually limitless. Content providers can control license start times, stop times, and duration in order to create innovative business models. Using these different rights enables content providers to optimize their own business rules.  Sample Subscription Model

5. Limited Play Previews
Content providers can create rental or preview licenses for limited viewing digital media files, such as 1 free play, expire in 24 hours, etc. The potential license rules are endless, giving the content owner maximum flexibility in delivering content.  link

6. Transparent Licensing
The content provider can also allow pre-delivery of licenses and silent licensing. This can improve the consumer's digital media experience as they don’t have to type information in order to play a file. link

7. Controlled Transfer to SDMI Portable Devices
Windows Media Device Manager permits the secure transfer of protected digital media files to Secure Digital Music Initiative (SDMI) portable devices or media.

8. Streaming
A content distributor sets up a Web site to stream content to which consumers pay a fee to log on. Consumers can select digital tracks to play. A license is silently issued and the Windows Media file is streamed to the consumer.

9. Multiple licenses
A content distributor implements a Web site that enables consumers to choose the license they want for a particular Windows Media file. For example, a consumer can pay a small fee to play a Windows Media file for one week, or pay a larger fee to play the Windows Media file for one year.

10. Batch packaging
A content owner wants to convert an existing collection of digital files in Windows Media Format to packaged Windows Media files for distribution on the Web. The content owner develops a batch packaging application that takes Windows Media files from a certain directory, adds information from a database, and then packages the Windows Media files.