Note: In GeneXus X this is not relevant because the images are stored in the Knowledge Base. This property is maintained only for compatibility reasons.
In GeneXus versions previous to GeneXus X, in this design model property you could enter the absolute path to use while working in design (i.e.: C:\Model). For example, if you are working in the Web form of a Web Panel, select the button Image in the bar of available controls to insert an image. In the dialog to enter the image origin, enter the relative path (ex: /images/img.gif). Thus, the image selected may be seen both in design and execution.