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The Red Screen of Death (abbreviated RSoD, sometimes called "Red Screen of Doom") is a nickname for the error message which existed in some beta versions of Microsoft's operating system, Windows Vista. It was dropped in Beta 1 (Build 5112) of Windows Vista for all errors except boot loader errors. It can also be found (but rarely) in versions and early builds of Microsoft's Windows 98 operating system, even when it was known as codename "Memphis".
It also sometimes refers to fatal errors in recent versions of Lotus Notes. These errors are not full-screen like the Microsoft red or blue screens of death, but rather are bright red boxes with black borders.
