I think I've miscommunicated. Here is my requirement

When the user plugs-in the USB device, my program has to ask for password from the user. Once authentication is right, the user will be prompted to enter the file name, that he needs to transfer from system to USB.

The primary purpose is that, the user should not use any other method to copy the files other than this interface, and the files copied by using this interface will be reported to the administrator. This interface is mainly used to log the files that are transfered.

Please suggest how can I do this?

In reply to Re^2: USB interface by Anonymous Monk
in thread USB interface by Anonymous Monk

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