Clean install of 8.0 - Services not activated - error "A binding instance has already
I've done a clean install of HAP v.8 on IIS7.5 (Server 2008 R2), but it shows that the services are not activated. If I visit 'HAP/api/setup' I get the error "A binding instance has already been associated to listen URI". I am trying to run HAP from a virtual directory since we do not want to place in the the main wwwroot, but do not know if this matters. Otherwise, I have followed the updated install documentation to the letter.
Quick update: For testing, I've moved to using a folder in IISRoot instead of the virtual directory, but still get the same error.