locahost returns old version of index.html rather than what I expect

Hi,

Is there any way to find out what page (ie. location of index.html) is
being displayed when I type http://localhost into my browser window?
According to the tutorial I've been using to set up IIS, I should not see
anything as I have removed all contents from the c:\inetpub\wwwroot folder
yet what I am seeing is a very old copy of the index.html page from when
I was hosting my website on Linux, so I'm thinking that either
its caching from somewhere or I am not using IIS when I type
http://localhost, rather some other web service. I know
that http request go through port 80, so is there a way to find out
all the processes that are using port 80?


Vista Ultimate