At my company, our software for one set of services is broken out into many different solutions containing any number of 350+ projects. My job at the company is to trace through all of this code to find where errors occur.
To facilitate this, I would like to have all of the projects contained within a single solution. I can do this via the 'Add Existing Project...' menu item, but it only allows me to add one project at a time. I also noticed that I can add existing items (multiple simultaneously) from Windows Explorer by dragging them onto a solution folder, but that doesn't import projects; it only adds the project file itself to the folder.
Is there a way to add multiple projects to a solution simultaneously? I realize that this may (read: will) take a long time.