Upgrading through every version of Windows: 5.0 to 7

Okay, so not every version of Windows – this video was made a few years ago. Nevertheless, software compatibility through over twenty years of operating system upgrades is very impressive. To demonstrate the effectiveness of Microsoft’s efforts, Doom II and Monkey Island were installed on MS-DOS 5.0 and ran perfectly on Windows 7. Watch your computing experience flash before your eyes…

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