MZMM is a freeware process memory logger for Windows it allows you to track and log to file the memory usage by individual processes. The small no-install executable works on Windows XP, Windows Server 2003, Windows 2000 and Windows NT 4.0 (not yet tested on Windows Vista). Version 1.1b fixes the following bug: previous versions allocated additional process handles (without releasing them) every time they logged the memory usage. This version includes also a small bugfix: in previous versions, the Esc key closed the main window.