What would you need it for anyway? I guess you could get a free C/C++/someotherprogramminglanguage compiler and write a command-line application to do the job. Or you can just get the compiler, and someone here will be so nice as to post the code for you, so that you only need to compile it. I don't think there's a way to do it only using ms-dos batches though...I used to be bit of an ms-dos nerd, maybe I can just dig up something outta my brain.