[msme]

ok first let me explain what exactly I want

I have a dedicated web server , with one web web site hosting hosted on it , I can access web web site hosting with 2 address my main domain and my static IP
but I want if users wanted to access my web web site hosting via IP system automaticaly redirect them to my domain istead of opening web web site hosting by IP, I want this for domain with and without www also . for example I want if users access web site hosting with this address http://mysite.com system redirect them to http://www.mysite.com
you can see this in microsoft domain
look at this

http://www.microsoft.com/windows/products/windowsvista/sp1.mspx

now if we got to this address with microsoft ip system automatically redirect us to main domain and above address

http://207.46.232.182/windows/products/windowsvista/sp1.mspx

I want to know what is IIS Web Server configuration to do this , or may be its a DNS configuration

Thanks