The App-V stack sandboxes the execution environment so that the application does not make changes to the client itself (OS File System and/or Registry). Whichever software is needed is either streamed or locally cached from the application server on demand and run locally. All application data is permanently stored on the virtual application server. Instead, only the App-V client needs to be installed on the client machines. It removes the need for local installation of the applications. Softgrid represents Microsoft's entry to a new avenue of virtualization product, alongside their existing Hyper-V package, Microsoft Virtual Server, Microsoft Virtual PC, and other products newly announced in 2006, such as System Center Virtual Machine Manager, the latter of which is designed for 'Datacenter Virtualization'.OverviewMicrosoft Application Virtualization platform allows applications to be deployed in real-time to any client from a virtual application server.

It was acquired by Microsoft during the acquisition of Boston, Massachusetts-based Softricity (SoftwareWow!) on July 17, 2006. Microsoft Application Virtualization is an application virtualization and application streaming solution from Microsoft. Because you avoid changes in the system the security of these systems is warranted, all changes remain in the sandbox. Therefore the usage on many different client scenarios is possible.Also the easy deployment, the usability on clients without administrative rights and the possibility to use different versions of software at the same time is comfortable. The evalazed application can run locally on the client or even run from portable hardware like USB devices. The sandbox can be placed to the same location like the EXE or at any other place. All User data and documents are saved in a sandbox. All information which are required and the needed libraries are included in the EXE file. The usage of virtualized software does not create entries in the registry and none DLL files are compiled on the host PC. That allows you to use different applications without any installation on the host PC or server. When the final EXE file exceeds a size of 10 MB a DAT file is automatically created as primary data container. The application is packaged in a single, self contained EXE file which can be used instantly.

Vmware portable apps