The project directory is where setup, temporary and other files are located.
Within project directory there are sub-directories and files listed below
SourceDir directory contains files that will be installed during installation.
The SourceDir is setup image under Admin installation.
Debug directory is where the built Windows installation will be located.
Temp directory is used for compress / extract cabinet files.
Embedded.Streams directory is where setup binary streams will be saved when
menu item File | Save or menu item File | Save As... is invoked.