Abstract: A streamed application includes a plurality of application blocks. A first subset of the plurality of application blocks is pre-stored in a cache on a host computer system prior to initiating execution of the streamed application. The streamed application may then be executed. One or more application blocks of the first subset of the plurality of application blocks may be retrieved from the cache during execution of the streamed application in response to one or more requests to access the one or more application blocks of the first subset. A second subset of the plurality of application blocks may be received from a server computer system during the execution of the streamed application and may be stored in the cache. The second subset may include one or more application blocks that were not stored in the cache when the streamed application was installed.

Abstract: A system and method for controlling interaction among environments including virtualized environments and a system environment. A process issues a request to perform an action on a resource or a second process. A virtualization environment manager operating in the system environment detects the request and in response, retrieves data associated with the request identifying the first process, a base environment corresponding to the process, and the resource, and retrieves a first rule from a programmable database of rules. A base environment of a process is an environment in which a process is running. The first rule corresponds to at least one of the first process, the base environment, and the resource and identifies a target environment in which to process the request. The target environment is different from the base environment of the process. The virtualization environment manager directs the request to the target environment.

Abstract: A system and method for controlling interaction among environments including virtualized environments and a system environment. A process issues a request to perform an action on a resource or a second process. A virtualization environment manager operating in the system environment detects the request and in response, retrieves data associated with the request identifying the first process, a base environment corresponding to the process, and the resource, and retrieves a first rule from a programmable database of rules. A base environment of a process is an environment in which a process is running. The first rule corresponds to at least one of the first process, the base environment, and the resource and identifies a target environment in which to process the request. The target environment is different from the base environment of the process. The virtualization environment manager directs the request to the target environment.

Abstract: A system and method for controlling interaction among environments including virtualized environments and a system environment. A process issues a request to perform an action on a resource or a second process. A virtualization environment manager operating in the system environment detects the request and in response, retrieves data associated with the request identifying the first process, a base environment corresponding to the process, and the resource, and retrieves a first rule from a programmable database of rules. A base environment of a process is an environment in which a process is running. The first rule corresponds to at least one of the first process, the base environment, and the resource and identifies a target environment in which to process the request. The target environment is different from the base environment of the process. The virtualization environment manager directs the request to the target environment.

Abstract: A system and method for virtualizing file extensions. The system includes a system environment, one or more virtual environments, and a shell extension. The shell extension detects a request to perform an action on a file in the system environment. The file has an associated file extension. The system environment includes applications for opening files. In response to detecting the request, the shell extension determines that the action is to open the file in the system environment and the file extension is not associated with any of the applications in the system environment. The shell extension queries the virtual environments to find an association between the file extension and an application, identifies at least one of the virtual environments in which the extension is associated with an application, and opens the file in a selected virtual environment.

Abstract: A system and method for streaming an install package into a virtual environment. The system includes a server and a client. The server streams an install package to the client as a series of streamlets. The client starts an installer component in a suspended state outside the virtual environment. The client registers the installer component in the virtual environment and initiates execution of the installer component in the virtual environment to receive portions of the install package and install the received portions of the install package in the virtual environment. During package installation, a virtualization manager detects an attempt to execute a call to a file system and confines file system changes resulting from the call to the virtual environment in response to determining that the attempt was made by the installer component and the installer component is registered in the virtual environment.

Abstract: A system and method for streaming an install package into a virtual environment. The system includes a server and a client. The server streams an install package to the client as a series of streamlets. The client starts an installer component in a suspended state outside the virtual environment. The client registers the installer component in the virtual environment and initiates execution of the installer component in the virtual environment to receive portions of the install package and install the received portions of the install package in the virtual environment. During package installation, a virtualization manager detects an attempt to execute a call to a file system and confines file system changes resulting from the call to the virtual environment in response to determining that the attempt was made by the installer component and the installer component is registered in the virtual environment.

Abstract: A software application streamed from a host system to a target system comprises the installation or configuration logic for another software application. In certain embodiments, the installation logic conforms to a well-known installation standard. The described technique allows the use and/or execution of installation logic or other related objects when these objects do not exist in their entirety on the target system. The application installation that results from this process may configure the subsequent application to be delivered only in part (in streamed mode) or in its entirety.

Abstract: A software application streamed from a host system to a target system comprises the installation or configuration logic for another software application. In certain embodiments, the installation logic conforms to a well-known installation standard. The described technique allows the use and/or execution of installation logic or other related objects when these objects do not exist in their entirety on the target system. The application installation that results from this process may configure the subsequent application to be delivered only in part (in streamed mode) or in its entirety.