Under the Debug Menu, Add an Attach to IIS item
Under the Debug Menu, add an Attach to IIS item. The new feature should detect the correct IIS process for the installed OS. This relieves the user from searching through the Attach to Process list to find aspnet_wp or w3wp.
Michael Paterson commented
Right on @Patrick. I use that too. VSCommands is awesome.
This extension will do add Attach to IIS for you: http://visualstudiogallery.msdn.microsoft.com/a83505c6-77b3-44a6-b53b-73d77cba84c8?SRC=Home