Phatnotes 5.3 data location on Windows CE (Pocket PC)

[katonag]

Where does Phatnotes 5.3 stores its notes on Windows CE?

The reason for asking this is that I have recently made a backup of my old PocketPC running Windows CE using SpriteBackup. Upon restoration I noticed, that the Phatnotes notes are disappeared. Where does Phatnotes 5.3 stores its notes? I made some test notes but I cannot find them. This is a very big problem, that the Phatnotes notes are gone. Everything else is correctly restored.