Easy Notes can be run manually, e.g. by shortcut Start|Programs|Easy Notes|Easy Notes, or with taken of the auto-run function - see Settings.
If Easy Notes already run, you may not run it once again in one session. Doing so will only bring your notes to the front; this can vary with Windows.
If you close Easy Notes with taken of Task Manager or any similar utility without notifying Easy Notes about it, you will be unable to run it for current session in the standard way. To run it anyway, run Easy Notes with allow_multiple parameter.