A method for providing access to a computing environment includes the step of receiving a request from a client system for an enumeration of available computing environments. Collected data regarding available computing environments are accessed. Accessed data are transmitted to a client system, the accessed data indicating to the client system each computing environment available to a user of the client system. A request is received from the client system to access one of the computing environments. A connection is established between the client system and a virtual machine hosting the requested computing environment via a terminal services session, the virtual machine executed by a hypervisor executing in the terminal services session provided by an operating system executing on one of a plurality of execution machines.

Methods and servers for establishing a connection between a client system and a virtual machine executing in a terminal services session and hosting a requested computing environment

An intelligent network streaming and execution system for conventionally coded applications provides a system that partitions an application program into page segments by observing the manner in which the application program is conventionally installed. A minimal portion of the application program is installed on a client system and the user launches the application in the same ways that applications on other client file systems are started. An application program server streams the page segments to the client as the application program executes on the client and the client stores the page segments in a cache. Page segments are requested by the client from the application server whenever a page fault occurs from the cache for the application program. The client prefetches page segments from the application server or the application server pushes additional page segments to the client based on the pattern of page segment requests for that particular application. The user subscribes and unsubscribes to application programs, whenever the user accesses an application program a securely encrypted access token is obtained from a license server if the user has a valid subscription to the application program. The application server begins streaming the requested page segments to the client when it receives a valid access token from the client. The client performs server load balancing across a plurality of application servers. If the client observes a non-response or slow response condition from an application server or license server, it switches to another application or license server.

Intelligent network streaming and execution system for conventionally coded applications

A method for executing, by a virtual machine, an application program requested by a client machine includes the step of receiving a file including access information for accessing a plurality of application files and for executing a first client capable of receiving an application stream. An identification of the plurality of application files is retrieved, responsive to the received file. At least one characteristic required for execution of the plurality of application files is retrieved, responsive to the file. A determination is made as to whether a client machine includes the at least one characteristic. A second client is executed, responsive to a determination that the client machine lacks the at least one characteristic, the second client requesting execution of the plurality of application files on a remote machine comprising a virtual machine providing a computing environment having the at least one characteristic.

Methods and systems for executing, by a virtual machine, an application program requested by a client machine

A method for providing access to a computing environment includes the step of receiving, by a broker machine, a request from a client machine for access to a computing environment, the request including an identification of a user of the client machine. One of a plurality of virtual machines is identified, the identified virtual machine providing the requested computing environment. One of a plurality of execution machines is identified, the identified execution machine executing a hypervisor providing access to hardware resources required by the identified virtual machine. A connection is established between the client machine and the identified virtual machine.

Methods and systems for providing access to a computing environment

A method for providing authorized remote access to a computing environment provided by a virtual machine, includes the step of requesting, by a client machine, access to a resource. A collection agent gathers information about the client machine. A policy engine receives the gathered information. The policy engine makes an access control decision based on the received information. A computing environment already associated with the user is identified in response to the received information, the identified computing environment provided by a virtual machine. A broker server establishes, responsive to the access control decision, a connection between the client machine and the identified computing environment.

Methods and systems for providing remote access to a computing environment provided by a virtual machine

The present invention provides a system for creating an application software environment without changing an operating system of a client computer, the system comprising an operating system abstraction and protection layer, wherein said abstraction and protection layer is interposed between a running software application and said operating system, whereby a virtual environment in which an application may run is provided and application level interactions are substantially removed. Preferably, any changes directly to the operating system are selectively made within the context of the running application and the abstraction and protection layer dynamically changes the virtual environment according to administrative settings. Additionally, in certain embodiments, the system continually monitors the use of shared system resources and acts as a service to apply and remove changes to system components. The present thus invention defines an “Operating System Guard.” These components cover the protection semantics required by .DLLs and other shared library code as well as system device drivers, fonts, registries and other configuration items, files, and environment variables.

Operating system abstraction and protection layer

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Operating system abstraction and protection layer