By default, only the directory inside the 
Program Files folder
                containing the standard resource files appears in the list, but PowerDesigner does
                not allow you to save modifications there, and will propose an alternative location
                if you try to do so, adding the selected directory to the list. You can add
                additional directories as necessary. 
Note: If
                    you have created or modified resource files inside 
Program
                        Files before 16.5, when this rule was introduced, your files may
                    no longer be available as Windows Vista or Windows 7 actually store them in a
                    virtual mirror at, for example,
                        
C:\Users\username\AppData\Local\VirtualStore\Program
                        Files\Sybase\PowerDesigner 16\Resource Files\DBMS. To restore
                    these files to your lists, optionally move them to a more convenient path, and
                    add their location to your list using the 
Path
                    tool.
 
 
            The first directory in the list is the default location, which is proposed whenever
                you save a file. The root of the library belonging to your most recent repository
                connection is searched recursively before the directories in the list (see
                    
Core Features Guide > Administering PowerDesigner > Deploying an Enterprise Glossary and Library), .
Note: In rare cases, when
                    seeking resource files to resolve broken references in models, the directories
                    in the list are scanned in order, and the first matching instance of the
                    required resource is used.