MeV is written in Java and expects to run on Java v1.6 or higher (v1.5 for Mac OS). Therefore MeV should run on any system that supports the appropriate Java version. However, no system is perfect and occasional platform-specific glitches do arise. We attempt to test MeV on the most common platforms. The current well-tested platforms (for MeV v4.4) are listed below. Windows XP / Java v1.6 Windows Vista / Java v1.6 Windows 2000 / Java v1.6 Mac OS Leopard / Java v1.5 Red Hat Linux / Java v1.6