Automatically Create Virtual Directories

[OpenIntro]

I am wanting to set up my site so that when the user goes to www.mysite.com/news it will bring up www.mysite.com/news.htm (but leaving it in the address bar as www.mysite.com/news)

I know how to set up virtual directories in IIS to do this, but the problem is, I am wanting to do this with quite a few different pages and possibly with each new page I create. Is there a way in IIS (or otherwise) to automatically set this up when a new page is created?

[ess]

check the following tutorial which goes in great details on how might achieve that for a website running on IIS

http://www.codeproject.com/aspnet/URLRewriter.asp