The Windows Media Digital Rights Management (WMDRM): License Protocol provides secure distribution, promotion, and sale of digital media content. The protocol is used to acquire licenses for Windows Media content protected using Digital Rights Management Version 1, Digital Rights Management Version 7, or Digital Rights Management Version 11 technologies.
Sections 1.8, 2, and 3 of this specification are normative and can contain the terms MAY, SHOULD, MUST, MUST NOT, and SHOULD NOT as defined in RFC 2119. Sections 1.5 and 1.9 are also normative but cannot contain those terms. All other sections and examples in this specification are informative.