PictureBook Windows Xtension system tray application is a software product for Windows developed by RTT
It is reported that the following Windows processes are part of PictureBook Windows Xtension system tray application:
If you want to remove PictureBook Windows Xtension system tray application from your computer, just go to Start > Control Panel > Add/Remove programs and select PictureBook Windows Xtension system tray application from the list of programs.