DOSVisor vs Magic DosBox

DOSVisor is a Windows project that runs some MS-DOS programs in a virtualized 16-bit real-mode environment using the Windows Hypervisor Platform API. It is presented as a demonstration of that API rather than a complete DOS emulator. Hardware virtualization handles the CPU, while software emulates the DOS layer. A custom Interrupt Vector Table uses CPUID instructions to trigger VM exits and intercept DOS interrupts. DOSVisor captures I/O requests but supports only a small set of common requests. Timing support includes the BIOS counter, RAM refresh toggle bit, system clock, RTC registers, clock interrupts, and DOS current-time calls; the 8253 PIT timer is not fully implemented. Keyboard handling monitors state, keeps a simple buffer, and passes input through interrupts. Basic terminal commands support simple text-based games and other basic programs. BIOS data areas and the Program Segment Prefix are allocated but mostly unpopulated. The free public repository contains bin and src directories, with no releases or packages listed.

Magic DosBox emulates MS-DOS so users can play their own classic DOS games on Android phones and tablets; games are not included. Its on-screen widgets can send keys, emulate a mouse, pause a game, and perform other actions. Users can customize widget appearance, size, and position, then export or share game profiles and layouts. It also supports physical mice, Samsung styluses, external gamepads, keyboards, sound, IPX networking, and serial modem connections. Games can be configured through a simplified interface or Expert settings based on a modified DOSBox configuration. The app lists ISO, GOG, INST, and CUE files, and supports save states. Magic DosBox Lite is free, with three widgets and a limited number of games in the collection. The $3.99, paid once plan includes all widgets and removes the collection limit. The maker says Google Play's required storage access can be slower than direct access, while Android 11-based changes block mounting the storage root and Downloads folder.