Secure Executable From Deletion

I have an executable that I need to have execute 48 hours after it is placed on the clients system. [This is NOT a virus!] I have what I need to do the timing already, but I need a way to ensure that the file stays on their system, and ensure that it will be running in memory, via startup reg so that if all else fails when they reboot their system after the two days it will execute. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Installation package that will install the software (in ready-to-run condition) on the platform(s) specified in this bid request. 3) Complete ownership and distribution copyrights to all work purchased. ## Platform Windows [All Versions] ## Deadline information I need this as soon as possible.