When you have your .trdx and external stylesheet files in a separate directory (e. g. a server directory available to all workplaces) it gets very difficult to show the .trdx files in ReportViewer without manipulating the reports a lot by code. 1. The external stylesheets are searched in the bin\Debug directory of the main application when using Kind="Relative". 2. What is even more annoying is the fact that all SUBREPORTS are also searched in the bin\Debug of the main application. I have to recursively look through all report items if there is a subreport and set its location. It would be very nice if the ReportViewer supports some kind of "path-to-reports" property and locate all the dependend files like subreport or stylesheet in this directory.