Abstract: A method for selecting a communication protocol for a virtual desktop instance in a service provider environment may include providing to a client computing device, access to a virtual desktop instance running on a server computer using a first communication channel associated with a first communication protocol. A request for functionality from a user of the device is detected, the requested functionality being unsupported by the first communication protocol. A second communication protocol from a plurality of available communication protocols may be selecting based on the requested functionality. The second communication protocol may support the requested functionality. A user authorization for using the second communication protocol can be verified.

Abstract: Systems and methods are described for a connection service that identifies connections for providing a data flow between a client computing device and a target computing device. A client computing device can send an API-based connection request to various servers hosting the connection service. The connection service processes the requests to determine a routing path for the connection. Advantageously, the connection service determines various routing paths and further identifies a connection for the data stream using that routing path. Finally, a control service provides control and relays requests to initiate data flows for resources configured for a data flow (e.g., a remote desktop session).

Abstract: Systems and methods are described for a connection service that identifies routing paths for providing a data flow between a client computing device and a target computing device. A client computing device can send an API-based connection request to various servers hosting the connection service. The connection service processes the requests to determine a routing path for the connection. Advantageously, the connection service selects a routing path from a plurality of available routing paths if a client computing device is associated with a network address translator. The connection service may provide an externally addressable network address if it determines that no such address is available for routing of a data flow.

Abstract: Systems, methods, and computer-readable storage media are disclosed for roaming profiles and application compatibility in multi-user systems. In an embodiment, a user profile exists on a plurality of client computers. Each client computer executes a roaming profile client that intercepts a change to an application's settings. The roaming profile client sends this change to a roaming profile server that stores it. When the user profile logs on to a second client computer, the roaming profile server sends an indication of the change to a second roaming profile client on the second client computer. This roaming profile client alters the settings for the application on the second client computer such that, when the user session executes the application on the second client computer, the application reflects the change.

Abstract: A method for selecting a communication protocol for a virtual desktop instance in a service provider environment may include providing to a client computing device, access to a virtual desktop instance running on a server computer using a first communication channel associated with a first communication protocol. A request for functionality from a user of the device is detected, the requested functionality being unsupported by the first communication protocol. A second communication protocol from a plurality of available communication protocols may be selecting based on the requested functionality. The second communication protocol may support the requested functionality. A user authorization for using the second communication protocol can be verified.

Abstract: Techniques are disclosed for virtualizing internet protocol (IP) addresses in terminal server sessions. Techniques include receiving requests for a virtual IP address from a client component, determining whether the requestor can use the virtual IP address, and either returning a requested virtual IP address or returning an indication that the requestor cannot use a virtual IP address. Methods for determining whether a virtual IP address can be used and methods for choosing a virtual IP address are disclosed.

Abstract: An invention is disclosed for conducting a remote presentation session with a client that uses a web browser to conduct the session. In embodiments, a proxy server exists between the remote presentation server and the client. The proxy server establishes a HTTP session with the client and a remote presentation session with the client. The server generates graphics encoded with a remote presentation protocol and sends them to the proxy, which re-encodes them as video and sends them to the client for display in the web browser. The client captures user input at the web browser and sends it to the proxy, which encodes it with the remote presentation protocol and sends it to the server to be processed.

Abstract: In various embodiments, a remote client is allowed to access at least a part of a connection service located on alternate sources other than the primary remote presentation server. In some embodiments, the remote presentation virtual channels may be split into multiple connections with the purpose of allowing better flow control. Some embodiments may be implemented in a virtual machine environment for cases in which the data to be transferred through a data channel is located in the host virtual machine partition but the remote endpoint is located on the guest virtual machine partition.

Abstract: Systems, methods, and computer-readable storage media are disclosed for roaming profiles and application compatibility in multi-user systems. In an embodiment, a user profile exists on a plurality of client computers. Each client computer executes a roaming profile client that intercepts a change to an application's settings. The roaming profile client sends this change to a roaming profile server that stores it. When the user profile logs on to a second client computer, the roaming profile server sends an indication of the change to a second roaming profile client on the second client computer. This roaming profile client alters the settings for the application on the second client computer such that, when the user session executes the application on the second client computer, the application reflects the change.

Abstract: A method includes determining if a server supporting an application and a client having remote desktop access to the server are on a same physical computing device. Upon determining that the server and the client are on the same physical computing device, graphics data related to the application is stored from the server to shared memory that is accessible by the server and by the client. Information to enable the client to retrieve the graphics data stored by the server in the shared memory is communicated from the server to the client.

Abstract: Systems, methods, and computer-readable storage media are disclosed for roaming profiles and application compatibility in multi-user systems. In an embodiment, a user profile exists on a plurality of client computers. Each client computer executes a roaming profile client that intercepts a change to an application's settings. The roaming profile client sends this change to a roaming profile server that stores it. When the user profile logs on to a second client computer, the roaming profile server sends an indication of the change to a second roaming profile client on the second client computer. This roaming profile client alters the settings for the application on the second client computer such that, when the user session executes the application on the second client computer, the application reflects the change.

Abstract: A method includes determining if a server supporting an application and a client having remote desktop access to the server are on a same physical computing device. Upon determining that the server and the client are on the same physical computing device, graphics data related to the application is stored from the server to shared memory that is accessible by the server and by the client. Information to enable the client to retrieve the graphics data stored by the server in the shared memory is communicated from the server to the client.

Abstract: Systems, methods, and computer-readable storage media are disclosed for virtualized eco-friendly remote presentation session roles. In an embodiment, a connection broker monitors the servers of a server farm, and, based upon characteristics of remote presentation sessions served by VMs executing on those servers, directs VMs on those servers to be migrated between servers, changed from sleeping to running or vice versa, or other operations that may improve the performance of the server farm as a whole.

Abstract: A method for offloading remote terminal services processing tasks to a peripheral device that would otherwise be performed in a computer system's processor and memory. In one embodiment, the disclosed method is utilized in a layered network model, wherein computing tasks that are typically performed in network applications are instead offloaded to a peripheral such as a network interface card (NIC).

Abstract: A method includes determining if a server supporting an application and a client having remote desktop access to the server are on a same physical computing device. Upon determining that the server and the client are on the same physical computing device, graphics data related to the application is stored from the server to shared memory that is accessible by the server and by the client. Information to enable the client to retrieve the graphics data stored by the server in the shared memory is communicated from the server to the client.

Abstract: In various embodiments, methods and systems are disclosed for integrating a remote presentation protocol with a datagram based transport. In one embodiment, an integrated protocol is configured to support lossless or reduced loss transport based on Retransmission (ARQ) combined with Forward Error Correction (FEC). The protocol involves encoding and decoding of data packets including feedback headers and FEC packets, continuous measurement of RTT, RTO and packet delay, dynamically evaluating loss probability to determine and adjust the ratio of FEC, congestion management based on dynamically detecting increase in packet delay, and fast data transmission rate ramp-up based on detecting a decrease in packet delay.

Abstract: A method for offloading remote terminal services processing tasks to a peripheral device that would otherwise be performed in a computer system's processor and memory. In one embodiment, the disclosed method is utilized in a layered network model, wherein computing tasks that are typically performed in network applications are instead offloaded to a peripheral such as a network interface card (NIC).

Abstract: The present invention extends to methods, systems, and computer program products for group based allocation of terminal server network bandwidth. Output packets are classified into groups based on classification criteria. Output packets for each group are queue into a corresponding queue. During a queue flush cycle each queue containing data is flushed for an essentially equal amount of time. Flushing each queue essentially equally reduces the negative impact that can otherwise result when a subset of sessions (or even a single session) request(s) a disproportional share of terminal server network bandwidth. Responsiveness can be further increased by distributing the essentially equal amount for each queue across the queue flush cycle.

Abstract: Embodiments that facilitate the fair and dynamic distribution of central processing unit (CPU) time are disclosed. In accordance with one embodiment, a method includes organizing one or more processes into one or more groups. The method further includes allocating a CPU time interval for each group. The allocation of a CPU time interval for each group is accomplished by equally distributing a CPU cycle based on the number of groups. The method also includes adjusting the allocated CPU time intervals based on a change in the quantity of the one or more groups.

Abstract: A method for offloading remote terminal services processing tasks to a peripheral device that would otherwise be performed in a computer system's processor and memory. In one embodiment, the disclosed method is utilized in a layered network model, wherein computing tasks that are typically performed in network applications are instead offloaded to a peripheral such as a network interface card (NIC).