> What "background process"? Who started that process? With what rights? > How did that process get on the machine in the first place? That back ground process which will copy the file to a temp location without the knowledge of user when he opens it .so there will be 2 copies. 1) file the user is viewing 2) file copied to temp location the process will be treated as part of a kernel , installed by me , with full permission . It will be started with boot up .It will feature like an inbuilt kernel function -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html