Thanks for your help ...
But most of my pictures were built using Photoshop 6.0 , and I was shocked when I was not able to read the Keyword, Description from these files !!
But when I opened a picture with Photoshop 7.0 and just save it again I was able to get/read the Keyword, Description from these files !!
How can I read these data from the pictures that were saved using Photoshop 6.0 ?? It is a disaster if need to resaving all pictures using Photoshop 7.0