Onan if your site is hosted on a (dare I say it) windows server you will probably have a private folder which is meant to be secure, I store stuff in mine and have tried to hack it from a bwowser but can't. However I am in agreement with the others comments that a writable cd will do the job for you in minutes or create a completely bizarre titled folder on your website or as I do both.
P.S. Thanks for the laugh the other day with your tag it had me in stitches, which took a little explaining in the office and still makes me smile when I see it.