Remote Desktop Protocol Wikipedia. Remote Desktop Protocol RDP is a proprietary protocol developed by Microsoft, which provides a user with a graphical interface to connect to another computer over a network connection. The user employs RDP client software for this purpose, while the other computer must run RDP server software. Clients exist for most versions of Microsoft Windows including Windows Mobile, Linux, Unix, mac. OS, i. OS, Android, and other operating systems. RDP servers are built into Windows operating systems an RDP server for Unix and OS X also exists. By default, the server listens on TCPport 3. UDP port 3. 38. 9. Microsoft currentlywhen refers to their official RDP client software as Remote Desktop Connection, formerly Terminal Services Client. The protocol is an extension of the ITU TT. HistoryeditEvery version of Microsoft Windows from Windows XP onwards4 includes an installed Remote Desktop Connection RDC Terminal Services client mstsc. Windows Service Pack. The Terminal Services server is supported as an official feature on Windows NT 4. TNBlogsFS/prod.evol.blogs.technet.com/CommunityServer.Blogs.Components.WeblogFiles/00/00/00/54/33/metablogapi/6320.clip_image029_59E0144B.jpg' alt='No Remote Desktop License Server Is Available Windows 2003' title='No Remote Desktop License Server Is Available Windows 2003' />Terminal Server Edition, Windows 2. Server, all editions of Windows XP except Windows XP Home Edition, Windows Server 2. Windows Home Server, on Windows Fundamentals for Legacy PCs, in Windows Vista Ultimate, Enterprise and Business editions, Windows Server 2. Windows Server 2. R2 and on Windows 7 Professional and above. Microsoft provides the client required for connecting to newer RDP versions for downlevel operating systems. Since the server improvements are not available downlevel, the features introduced with each newer RDP version only work on downlevel operating systems when connecting to a higher version RDP server from these older operating systems, and not when using the RDP server in the older operating system. Version 4. Based on the ITU T T. Untitled-3.jpg' alt='No Remote Desktop License Server Is Available Server 2008' title='No Remote Desktop License Server Is Available Server 2008' />T. T. RDP named version 4. Microsoft with Terminal Services, as a part of their product Windows NT 4. Server, Terminal Server Edition. The Terminal Services Edition of NT 4. Citrixs Multi. Win technology, previously provided as a part of Citrix Win. Frame atop Windows NT 3. Microsoft required Citrix to license their Multi. Win technology to Microsoft in order to be allowed to continue offering their own terminal services product, then named Citrix Meta. Frame, atop Windows NT 4. The Citrix provided DLLs included in Windows NT 4. Windows_server_2008_r2_rd_license_discovery.jpg' alt='No Remote Desktop License Server Is Available' title='No Remote Desktop License Server Is Available' />Terminal Services Edition still carry a Citrix copyright rather than a Microsoft copyright. Later versions of Windows integrated the necessary support directly. The T. 1. 28 application sharing technology was acquired by Microsoft from UK software developer Data Connection Limited. Version 5. This version was introduced with Windows 2. Server, added support for a number of features, including printing to local printers, and aimed to improve network bandwidth usage. Version 5. 1editThis version was introduced with Windows XP Professional, included support for 2. The client is available for Windows 2. Windows 9x, Windows NT 4. Launch a Remote Desktop session and automatically log you in from the command line or a GUI. Features credential profiles, favorites and a system tray. Hey all, I have a terminal server in Windows Server 2012 that the 120 grace period expired for licenses. I had setup the license server on the same server. After performing rename of Active Directory AD domain name, servers which are running Remote Desktop Services may have a bubble shown Notification Area System Tray. A fully functional and activated 2012 Remote Desktop Session Host server displayed the following message This was a simple setup on one server with the connection. After following the steps above I get this The remote session was disconnected because the Remote Desktop client access license stored on this computer has been. No Remote Desktop License Server Is Available' title='No Remote Desktop License Server Is Available' />With this version, the name of the client was changed from Terminal Services Client to Remote Desktop Connection the heritage remains to this day, however, as the underlying executable is still named mstsc. Version 5. 2editThis version was introduced with Windows Server 2. It also introduces Transport Layer Security TLS 1. This version is built into Windows XP Professional x. Edition and Windows Server 2. Editions. Version 6. This version was introduced with Windows Vista and incorporated support for Windows Presentation Foundation applications, Network Level Authentication, multi monitor spanning and large desktop support, and TLS 1. Version 6. 0 client is available for Windows XP SP2, Windows Server 2. SP1SP2 x. 86 and x. Windows XP Professional x. Edition. Microsoft Remote Desktop Connection Client for Macintosh OS X is also available with support for Intel and Power. PC Mac OS versions 1. Server 2. 01. 2 can support RDC 6. Version 6. 1editThis version was released in February 2. Windows Server 2. Windows Vista Service Pack 1. The client is included with Windows XP SP3. In addition to changes related to how a remote administrator connects to the console,1. Windows Server 2. Version 7. 0editThis version was released to manufacturing in July 2. Windows Server 2. R2, as well as with Windows 7. With this release, also changed from Terminal Services to Remote Desktop Services. This version has new functions such as Windows Media Player redirection, bidirectional audio, multi monitor support, Aero glass support, enhanced bitmap acceleration, Easy Print redirection,1. Language Bar docking. The RDP 7. 0 client is available on Windows XP SP3 and Windows Vista SP1SP2 through KB9. RDP 6. 1 client and RDP 7. Windows Server 2. Windows Server 2. Windows XP Professional x. RDP 7. 0 is also not supported on Windows Server 2. RDP 7. 0 clients also do not support connecting to terminal servers running Windows 2. Server. 1. 7Most RDP 7. Aero glass remote use, bidirectional audio, Windows Media Player redirection, multiple monitor support and Remote Desktop Easy Print are only available in Windows 7 Enterprise or Ultimate editions. SP1 and Server 2. R2 SP1. It adds Remote. FX functionality. Version 8. 0editThis version was released in Windows 8 and Windows Server 2. This version has new functions such as Adaptive Graphics progressive rendering and related techniques, automatic selection of TCP or UDP as transport protocol, multi touch support, Direct. X 1. 1 support for v. GPU, USB redirection supported independently of v. GPU support, etc. A connection quality button is displayed in the RDP client connection bar for RDP 8. UDP is in use or not. The RDP 8. 0 client and server components are also available as an add on for Windows 7 SP1. The RDP 8. 0 client is also available for Windows Server 2. R2 SP1, but the server components are not. The add on requires the DTLS protocol to be installed as prerequisite. After installing the updates, for the RDP 8. Windows 7 machines, an extra configuration step is needed using the Group Policy editor. A new feature in RDP 8. RDP session nesting it only works for Windows 8 and Server 2. Windows 7 and Server 2. R2 even with the RDP 8. The shadow feature from RDP 7, which allowed an administrator to monitor snoop on a RDP connection has been removed in RDP 8. The Aero Glass remoting feature applicable to Windows 7 machines connecting to each other has also been removed in RDP 8. Version 8. 1editThis version was released with Windows 8. Windows Server 2. R2. A RDP 8. 1 client update exists for Windows 7 SP1 as well, but unlike the RDP 8. Windows 7, it does not add a RDP 8. Windows 7. Furthermore, if RDP 8. Windows 7, the KB 2. RDP 8. 0 client and server components update must be installed before installing the RDP 8. Support for session shadowing was added back in RDP version 8. This version also fixes some visual glitches with Microsoft Office 2. Remote. App. 2. 5Version 8. RDP protocol also enables a restricted admin mode. Aria Pro Ii No Serial Number. Logging into this mode only requires knowledge of the hashed password, rather than of its plaintext, therefore making a pass the hash attack possible. Microsoft has released an 8. Version 1. 0. 0editVersion 1. RDP protocol includes the following new features Auto. Size zoom useful for Hi. DPI clients. 2. 9 In addition graphics compression improvements were included utilizing H. AVC. 3. 0Featuresedit3. Fix Remote session was disconnected because there are no Remote Desktop client access licenses. Here is a fix to the following error message with Remote Desktop Connection when you try to connect to a machine Remote session was disconnected because there are no Remote Desktop client access licenses available for this computer. Please contact the server administratorThe solution is deletethe following registry key HKEYLOCALMACHINESOFTWAREMicrosoftMSLicensing. Try connecting in again. If it doesnt work and you get the following error message The remote computer disconnected the session because of an error in the licensing protocol Then all you need to do is Right Click on the Remote Desktop Connection icon and select Run as Administrator. GD Star Ratingloading. GD Star Ratingloading. Fix Remote session was disconnected because there are no Remote Desktop client access licenses, 5.