👉 It's a piece of software used to run in a Windows 8.1 virtual machine, like VMWare Fusion or VirtualBox, making it easier for users to run Windows applications on an ARM-based system. In context, "7220s.conf" is typically a configuration file used by the Microsoft Virtual Machine Engine (Microsoft VME), which manages and controls the virtualization of operating systems. It specifies the operating system's kernel image location, user preferences, and other system-specific settings needed for the virtual machine to function correctly.