And have you tried what they suggest? repair visual studio...? – Ruben HermanNov 20 '12 at 9:06
Can you add some more detail like what sort of application and how do you debug the application? I hope you are attaching your program to w3wp process – DiptaragNov 20 '12 at 9:08
Visual Studio uses internal web server called Cassini, I think that is broker... Reinstalling or Repairing Visual Studio should fix the issue! – Arsalan Adam KhatriNov 20 '12 at 9:35