Windows includes two client applications which utilize terminal services: the first, Remote Assistance is available in all versions of Windows XP and successors and allows one user to assist another user.

Both the underlying protocol as well as the service was again overhauled for Windows Vista and Windows Server 2008. All versions of Windows XP, except Home edition, also include a Remote Desktop server. It was significantly improved for Windows 2000 and Windows Server 2003. Terminal Services was first introduced in Windows NT 4.0 Terminal Server Edition.

Microsoft changed the name from Terminal Services to Remote Desktop Services with the release of Windows Server 2008 R2 in October 2009. This is in contrast to appstreaming systems, like Microsoft Application Virtualization, in which the applications, while still stored on a centralized server, are streamed to the client on-demand and then executed on the client machine. Any input to it is redirected over the network to the server, where all application execution takes place.

With terminal services, only the user interface of an application is presented at the client. The client can either be a fully-fledged computer, running any operating system as long as the terminal services protocol is supported, or a barebone machine powerful enough to support the protocol (such as Windows FLP). Terminal Services is Microsoft's implementation of thin-client terminal server computing, where Windows applications, or even the entire desktop of the computer running terminal services, are made accessible to a remote client machine. Remote Desktop Services, formerly known as Terminal Services, is one of the components of Microsoft Windows (both server and client versions) that allows a user to access applications and data on a remote computer over a network, using the Remote Desktop Protocol (RDP).

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