>>How to hide the windows clock. A user cannot change the time and date
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>You can right-click on the Windows TaskBar, select Properties, and un-select "Show clock".
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>However, any user can undo this. Also, a user can still change the time from Control Panel.
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>Perhaps you can disable the changing of date/time with System Policies, but the user can still circumvent this, in DOS (press F8, start in DOS mode, give the DATE or TIME command).
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>If you need a reliable time-source in a program, better get it from a server, connected to the network. The end-user should not have physical access to the server. One way to get the date/time from the server is to create a file on the server, and get the file's date/time.

Hi Hilmar. I suppose another option would be that when the app loads it connects to a third party time clock on the Internet and retrieves the time from that. No connect - no continue :)