Internet Explorer can not display the page.
Localhost not able to establish a connection on port..
getting the above messages when trying to run my application locally. I got this problem after installing this week's updates to Vista. It messed up VS developer server settings.
Apparently it was due to Definition Update for Windows Defender - KB915597 (Definition 1.53.256.0)
Go to c:\Windows\System32\drivers\etc\ and open the file named hosts with a text editor and search for the line containing "::1" and change "::1" to ":::1" by adding an extra ":"
It solved the problem on one of my development machine. If it didn’t work, leave a comment.
Another solution from visual web developer team.
Same problem is discussed here and here