I just downloaded and installed the Installer Projects extension for VS 2013 and tried to make a new .vdproj project. I created new "Hello World" console application project, then added a new Visual Studio Installer project to the solution, added the output of the console project to it, and tried to build it. Visual Studio opened a file save dialog and prompted me to save my .vdproj file. When I clicked "Save", it complained that it could not find the file that it was prompting me to save.
Why can't I create this simple .vdproj project? VS had no problem with saving the console application project files to this location.