What Is Application Virtualization?
Application virtualization is a technology that separates applications from the underlying operating system, wrapping them in a self-contained virtual environment. Users can run applications without traditional installation, eliminating conflicts between applications and reducing dependency issues.
Instead of installing software directly onto each endpoint, virtualized applications are packaged, centrally managed, and delivered on-demand. The application behaves exactly as if installed locally — appearing in the Start menu, interacting with files, and accessing local peripherals — but its runtime environment is isolated from the host OS.
How It Works
The virtualization layer intercepts all interactions between the application and the OS — file system operations, registry access, environment variables, and DLL references — redirecting them to a virtualized sandbox. This sandbox contains everything the application needs to run, so it never conflicts with other software on the device.
Delivery models vary: some solutions stream only the application code needed at runtime (application streaming), while others deliver the entire virtualized package upfront. Many modern solutions combine both approaches for optimal performance.