For 32 bit apps: Win9X/Me is: preemptive multitasking (separate programs) preemptive multithreading (multiple threads in one program) just like NT. Bob Ammerman RAm Systems (contract development of high performance, high function, low-level software) -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics