Quit
This command terminates the current session and exits. If the current workspace is not empty and depending on your File/Preferences setting, Picture Window may automatically save a workspace script for the current workspace or ask you if you want to save a workspace script. Saving a workspace script lets you pick up where you left off when you start a new session by reloading the saved script.
Workspace script files used to save and restore your work between sessions are saved under a filename that includes the date and time they were saved. This means you can recover an earlier session if you know when it was saved. These workspace files accumulate indefinitely, so you might want to clean out older ones from time to time. They are saved in the Session State folder which is normally located in the folder:
C:\Users\user name\AppData\Local\Picture Window Pro\Session State
Where user name is to be replaced by your user name.