After completing the processing procedure, the application can be closed or minimized to tray. Such behaviour is regulated with the Close after processing and Hide to tray instead of close settings. The settings are located on the File main menu > Options > Explorer tab.
Close after processing completes the work of IDPhoto Processor after processing. If the Hide to tray instead of close setting is disabled, IDPhoto Processor will be closed; if enabled, then it will be minimized to tray.
Hide to tray instead of close changes closing IDPhoto Processor to minimization to tray.