File Summary info deleted by PSPPX2

[Sorlie]

When I scan slides (TIFF format), I routinely add relevant information to the Summary section of the file using Windows Explorer (Title, author, comments, etc). If I subsequently edit the photo using PSPPX2, that information is deleted. Adobe PSE 5 and several other photo editors do the same but some, including PSPPX2, allow the info to be reentered. PSE5 locks the file and does not allow reentry. I have yet to find a photoeditor that does not mess with information that I want retained.

Do all photo editors mess with the text info in the original file? If so, why? Why do they meddle with the file in areas outwith the graphics portion?

Is there any way to prevent deletion of text from occurring?