Norman wrote:I don't see why not--the file that is running is in memory, isn't it? Why couldn't you copy the *files on the disk* that represent the OS? And aren't you implying that XXCOPY did that?Of course, the reason xcopy doesn't copy those uncopyable files is that those files are running as part of Windows and you can't copy a file while it's running. In other words, an OS can't copy itself.Harry Binswanger hb@xxxxxxxx