[Keep Limited Accounts From Closing Apps]

DynDNS Updater allows you to install itself as a system service.

[Interesting programming challenge]

Hypothetically, couldn't one hard-code the approximate size of the application into the application, and have it add some empty bits to the end of it after it's first run.  It could check it's own size and display a different output if it finds itself significantly bloated.  Just a similar but different means.