After officially cutting support for Windows 98 and Windows ME last week, Microsoft has unveiled a trimmed-down version of its flagship operating system dubbed Windows Fundamentals for Legacy PCs. Windows Fundamentals is based on the Service Pack 2 release of Windows XP Embedded, a spin-off of Windows XP Professional aimed at embedded devices. According to an older report by CNet, Windows Fundamentals—previously code-named Eiger—is essentially a thin client that can only run a few programs locally. Such programs include Internet Explorer, Windows Media Player, and anti-virus software. However, the limited functionality allows the operating system to be squeezed onto much older systems than vanilla versions of Windows XP: CNet says Fundamentals can run on machines with original Pentium processors and just 64 MB of memory.