The Notifier Window is displayed during Startup if the Show Notifier checkbox is checked in the Options Window. Settings for the Notifier Window can be found in the main Options window within Startup Delayer.
The Skip button can be used to Skip whatever Startup Delayer is currently performing. If it is waiting for User confirmation the skip button will move to the next Application. If it is waiting for the CPU or Disk to become idle, the Skip button will cancel launching the Application and move onto the next.
The Launch Now button will force the Application to launch immediately, even if the Computer isn't idle or the time value hasn't expired.