What the heck is EZdesk?
My scanner software started some app that would sit in the systray. I did a ctrl+alt+del to find the name of the app in the Close Program box. Then I:
1. Backed up my registry.
2. Ran regedit.
3. Searched for the executable being loaded and deleted its entry.
4. Rebooted.
Since I don't know what EZdesk is, I can't say that I advise this, but it's one way to get rid of programs launched from the Registry...assuming this one is. I also assume you already checked the Startup group and couldn't find it.
No offense intended, but I don't know you level of expertise. If you're not familiar with editing the Registry, I'd read up on it before attempting anything.
Mike