>Your easiest option may be to have a static web page with a link to the file to be downloaded. Include on the page, download instruction so they know where to download the file to [i.e., the directory where they installed the app]. This file would be the new encoded date file. Access to this page could be secured (userid and password required to access it).
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>Unless you are absolutely sure everyone installs the app in exactly the same directory that you dictate, finding the original encoded file could be a bear. You can darn sure bet their app directory won't be in any search path to make your locating any easier.
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Hi Mark.

Thanks for the input. Actually, my installation puts this file in their windows directory, so I think I should be able to find it. The only problem with letting them download the file is this: suppose a sales rep knows that he is resigning in a month. He may update his expiration date to make sure he has a whole year of (unauthorized) use of this program. That's why there is the need to make sure the program is due to expire before updating the date.

Marcia