The question is if you really used PSPad project. 100 individual open tabs in any editor isn't project. It's 100 individual files. It's similar as in webbrowser. There is no protection to keep your files open because no such thing is necessary. PSPad offers you several way how to handle your files: 1. Project - the best way, but I am not sure if you used it 2. Session - you can save and load any count of individual files as session. Anytime you can load it back at once.
Both possibilities are described in PSPad help. Can you tell me what of two possibilities above did you used? PSPad backup (into backup folder or backup with changed extension) works in PSPad several years without change. -- <http://forum.pspad.com/read.php?2,63171,63177> PSPad freeware editor http://www.pspad.com
