US Patent 11709799 Content or file based application virtualization using a cache

Embodiments provide for application-specific provisioning of files or registry keys. As applications are installed or launched, data is recorded by an application virtualization engine, and an index is created linking the recorded data to both the application and the underlying files or registry keys. As applications are requested (e.g., launched, updated, or the like), the application virtualization engine reveals various copies of file or registry keys to the application on demand or in accordance with a policy.