Complex sentence: The RDP 8.0 client and server components are also available as an add-on for Windows 7 SP1 and Windows Server 2008 R2 SP1; the add-on requires the DTLS protocol to be installed as prerequisite.
Split into simpler sentences: The RDP 8.0 client and server components are also available as an add-on for Windows 7 SP1. The add-on requires the DTLS protocol to be installed as prerequisite.