[RESOLVED] Question about localhost:nnnn vs localhost

[MMock]

Creating an IMAGES folder was an epic failure, onto the net thing... (Woops, meant "next thing" - Freudian slip???)

What troubled me was I got this project from my coworker and when she loaded it, it used IIS but when I loaded it, it used Cassini. Odd. She sent me her sln file and I did a side-by-side text comparison and edited mine to match hers, most notably I changed this:
From: Project("{*** long numeric string ***}") = "XXX Web Enrollment", "D:\New Website Projects\XXX Web Enrollment", "{*** long numeric string ***}"
To: Project("{*** long numeric string ***}") = "XXX Web Enrollment", "http://localhost/XXX Web Enrollment", "{*** long numeric string ***}"

Now when I run, it opens up a browser window and does not start the ASP.NET development server and the URL is localhost without the port, BUT...something is wrong because I get an error that it is missing service.wsdl in App_WebReferences\ApplicationSecurity.