“Unable to launch the IIS Express Web server” error

Question

I receive this error when trying to launch IIS Express from Visual Studio with a project that\'s configured to listen to an address other than localhost. Visual Studio free

Answer 1

I fixed it with the following steps:

• Close Visual Studio
• Run netsh http show urlacl and see if your application http address/port is listed.
• Run netsh http delete urlacl url=[ADDRESS] replacing [ADDRESS] with the Reserved URL shown by the previous command. For example http://+:17560/
• Run VS again (as Admin) then go to web project's Properties -> Web then click on Create Virtual Directory button.
• Now you should be able to run the web project.