Catalogue .pdx doesn’t work on a client windows 7 system, when the pdx file Is accessed by a book mark, a “no program is associated with this file” dialogue box comes up, when you click directly on the pdx file “open a recent file” dialogue box opens. How

Catalogue .pdx doesn’t work on a client windows 7 system, when the pdx file Is accessed by a book mark, a “no program is associated with this file” dialogue box comes up, when you click directly on the pdx file “open a recent file” dialogue box opens. How can I get the search facility too work?