[Alug] Not sure what the subject should be!!!

Hi chaps and chappesses.. It's probably possible and really easy, but I don't know how... I want to dump a file in a directory and as soon as it appears to be executed then removed... i.e ftp a file onto a server in a particular directory, once uploaded, the file gets executed immediately... Possible yes/no? I'm sure I've heard that this can be done, just can't remember.. TIA Simon