Abstract: A virtual application packaged for a specific executing environment may be executed on a processing device having an executing environment different from the specific executing environment. A reference, included in extracted installer metadata, to one or more key paths of a hierarchically-structured data store may be modified according to a set of rules related to the executing environment detected in the processing device. The modified extracted installer metadata may be provided to an installer for installing the virtual application. During execution of the virtual application, a request to read, write, or modify the hierarchically-structured data store may be intercepted and changed, such that a first key path included in the request may be mapped to a second key path, based on the detected executing environment. Similarly, a response to the request, which may include the second key path, may be intercepted and modified, to the first key path.

Abstract: An application packaged for a specific executing environment may be executed on a processing device having an executing environment different from the specific executing environment. A first path of a first executing environment is modified to be a second path of a second executing environment, where the first path is contained in installer metadata associated with an application packaged for operating in the first executing environment. The modified installer metadata is provided to an installer, the application is installed according to the modified installer metadata to create the second path in the second executing environment of a processing device, a request to access the first path in the first executing environment is modified to a modified request to access the created second path in the second executing environment, and the modified request is processed by the processing device.

Abstract: A virtual application packaged for a specific executing environment may be executed on a processing device having an executing environment different from the specific executing environment. A reference, included in extracted installer metadata, to one or more key paths of a hierarchically-structured data store may be modified according to a set of rules related to the executing environment detected in the processing device. The modified extracted installer metadata may be provided to an installer for installing the virtual application. During execution of the virtual application, a request to read, write, or modify the hierarchically-structured data store may be intercepted and changed, such that a first key path included in the request may be mapped to a second key path, based on the detected executing environment. Similarly, a response to the request, which may include the second key path, may be intercepted and modified, to the first key path.

Abstract: A disassembler receives instructions and disassembles them into a plurality of separate opcodes. The disassembler creates a table identifying boundaries between each opcode. Each opcode is written to memory in an opcode-by-opcode manner by atomically writing standard blocks of memory. Debug break point opcodes are appended to opcode to create a full block of memory when needed. The block of memory may be thirty-two or sixty-four bits long, for example. Long opcodes may overlap two or more memory blocks. Debug break point opcodes may be appended to a second portion of the long opcode to create a full block of memory. A stream fault interceptor identifies when a requested data page is not available and retrieving the data page.

Abstract: A virtual application packaged for a specific executing environment may be executed on a processing device having an executing environment different from the specific executing environment. A reference, included in extracted installer metadata, to one or more key paths of a hierarchically-structured data store may be modified according to a set of rules related to the executing environment detected in the processing device. The modified extracted installer metadata may be provided to an installer for installing the virtual application. During execution of the virtual application, a request to read, write, or modify the hierarchically-structured data store may be intercepted and changed, such that a first key path included in the request may be mapped to a second key path, based on the detected executing environment. Similarly, a response to the request, which may include the second key path, may be intercepted and modified, to the first key path.

Abstract: A virtual application packaged for a specific executing environment may be executed on a processing device having an executing environment different from the specific executing environment. A reference, included in extracted installer metadata, to one or more key paths of a hierarchically-structured data store may be modified according to a set of rules related to the executing environment detected in the processing device. The modified extracted installer metadata may be provided to an installer for installing the virtual application. During execution of the virtual application, a request to read, write, or modify the hierarchically-structured data store may be intercepted and changed, such that a first key path included in the request may be mapped to a second key path, based on the detected executing environment. Similarly, a response to the request, which may include the second key path, may be intercepted and modified, to the first key path.

Abstract: A disassembler receives instructions and disassembles them into a plurality of separate opcodes. The disassembler creates a table identifying boundaries between each opcode. Each opcode is written to memory in an opcode-by-opcode manner by atomically writing standard blocks of memory. Debug break point opcodes are appended to opcode to create a full block of memory when needed. The block of memory may be thirty-two or sixty-four bits long, for example. Long opcodes may overlap two or more memory blocks. Debug break point opcodes may be appended to a second portion of the long opcode to create a full block of memory. A stream fault interceptor identifies when a requested data page is not available and retrieving the data page.

Abstract: A disassembler receives instructions and disassembles them into a plurality of separate opcodes. The disassembler creates a table identifying boundaries between each opcode. Each opcode is written to memory in an opcode-by-opcode manner by atomically writing standard blocks of memory. Debug break point opcodes are appended to opcode to create a full block of memory when needed. The block of memory may be thirty-two or sixty-four bits long, for example. Long opcodes may overlap two or more memory blocks. Debug break point opcodes may be appended to a second portion of the long opcode to create a full block of memory. A stream fault interceptor identifies when a requested data page is not available and retrieving the data page.

Abstract: A disassembler receives instructions and disassembles them into a plurality of separate opcodes. The disassembler creates a table identifying boundaries between each opcode. Each opcode is written to memory in an opcode-by-opcode manner by atomically writing standard blocks of memory. Debug break point opcodes are appended to opcode to create a full block of memory when needed. The block of memory may be thirty-two or sixty-four bits long, for example. Long opcodes may overlap two or more memory blocks. Debug break point opcodes may be appended to a second portion of the long opcode to create a full block of memory. A stream fault interceptor identifies when a requested data page is not available and retrieving the data page.

Abstract: A virtual application packaged for a specific executing environment may be executed on a processing device having an executing environment different from the specific executing environment. A reference, included in extracted installer metadata, to one or more key paths of a hierarchically-structured data store may be modified according to a set of rules related to the executing environment detected in the processing device. The modified extracted installer metadata may be provided to an installer for installing the virtual application. During execution of the virtual application, a request to read, write, or modify the hierarchically-structured data store may be intercepted and changed, such that a first key path included in the request may be mapped to a second key path, based on the detected executing environment. Similarly, a response to the request, which may include the second key path, may be intercepted and modified, to the first key path.

Abstract: Efficient virtual application updating is enabled. An old version of a virtual application can be compared to a new version of the virtual application and updated as a function thereof. A file unchanged from the old version to the new version can be hard linked from the new version to the old version. For a changed file, matching portions of the file can be copied from the old version to the new version, and remaining un-matching portions can be acquired from another source.

Abstract: Disclosed are systems and methods for application streaming over HTTP. A virtual application running on a host computing device may detect the need for a page of memory that is not present on the host computing device. Accordingly, the virtual application may send a request to a virtual application server, seeking the absent memory page. The virtual application server may send to a web server an HTTP GET byte range request for the desired memory page. The web server may retrieve the requested block, which may be a portion of the virtual application image file. The requested data is returned to the host computing device via the virtual application server. The virtual application continues running on the host device using the requested data.

Abstract: Access to virtual application resources can be regulated at runtime. More specifically, a process can be provided with access to at least one virtual application resource as a function of context. By way of example, process events can be monitored and analyzed during execution to determine whether access should be provided to the process.

Abstract: A virtual application packaged for a specific executing environment may be executed on a processing device having an executing environment different from the specific executing environment. A reference, included in extracted installer metadata, to one or more key paths of a hierarchically-structured data store may be modified according to a set of rules related to the executing environment detected in the processing device. The modified extracted installer metadata may be provided to an installer for installing the virtual application. During execution of the virtual application, a request to read, write, or modify the hierarchically-structured data store may be intercepted and changed, such that a first key path included in the request may be mapped to a second key path, based on the detected executing environment. Similarly, a response to the request, which may include the second key path, may be intercepted and modified, to the first key path.

Abstract: Disclosed are systems and methods for application streaming over HTTP. A virtual application running on a host computing device may detect the need for a page of memory that is not present on the host computing device. Accordingly, the virtual application may send a request to a virtual application server, seeking the absent memory page. The virtual application server may send to a web server an HTTP GET byte range request for the desired memory page. The web server may retrieve the requested block, which may be a portion of the virtual application image file. The requested data is returned to the host computing device via the virtual application server. The virtual application continues running on the host device using the requested data.