To debug installation Build Windows installation from your project. To do this invoke menu item Project | Build. Select on the Sequence page a sequence to be debugged. Set required breakpoints. Select an action and invoke menu item Project | Insert Breakpoint. Start installation. Depending on the selected sequence invoke Start INSTALL / ADMIN / ADVERTISE menu item. When installer stops on breakpoint Use Project | Watch Table menu item to show / hide installation tables. Use Project | Properties menu item to watch installation properties. Use Project | Feature / Component State menu item to watch installation feature / component states. Invoke Project | Step Next to step over installation sequence. Invoke Project | Start to continue installation. To break running installation invoke menu item Project | Stop Debugging.