For quite some time I've been using VS2010 with multiple workspaces mapped from the same TFS branch to test different variants of a website in parallel. The internal web server (Cassini) seems quite happy to run multiple versions and simply maps a new port number for the second and subsequent instances that start up.
We are now looking to move to VS2013, so have to use IISExpress since the 'internal' web server is no longer provided.
How do I configure things so that if I open a single workspace, IISExpress runs against that workspace using the default port number (specified in the solution), but if I open a second instance in a different workspace it correctly uses a new port number and working folder. Do I need to invoke IISExpress using the command line (presumably from each workspace) and specify the relevant defaults or is there some way to enter this in the local config file for IISExpress?
My initial attempt at editing to config file resulted in the 2nd and subsequent instance using the same physicalfolder as the first instance, presumably because the speficied site name and port number are the same!