Question : Repair of jpeg files

My favorite picture viewer is the old Kodak imager app that was part of win2000.  In XP the WIndows picture and fax viewer has the obnoxious limitation of not letting you have multiple images open at once.  It is possible to install the old imager into WinXP, extracting it from the win2000 CD, into an XP environment.  It works fine.  You can still choose which app can open various file types.  Most of the time it works fine.  Except some jpegs give an error about an unsupported type of file.  Jpg gurus: Is there a way to analyze a jpg file to see why some viewers have trouble with it?  Is there a way to repair or modify the problem?  The file will open in other things, IE, Photoshop, even Windows picture & fax viewer.

If the answer is just that WP&FV just isn't very forgiving of jpg's with whatever differences, maybe you know a viewer that is similar to the old Kodak image view, but handles all files more forgivingly.  I realize that the current owner of the Kodak software has a descendent "professional" version "viewer" that they charge more than Windows costs for, but I am not interested in that.

Answer : Repair of jpeg files

There is a PHP JPEG Metadata Toolkit that a number of people have used to build various apps that pull out JPEG metadata.  A list of the apps is available here:

http://www.ozhiker.com/electronics/pjmt/users.html

If you can post the images online there is a free online JPEG analyzer that will give you very detailed info about the image at (it uses the PJMT):

http://www.monster-submit.com/resources/jpeganalyzer/
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