IIS has lots of built in utilities and GUI tools for managing websites. If you need to do a redirect from one URL to another, it couldn’t be easier, especially if you need to include the querystring or URL vars (variables).
By the way, if you just need a simple way to redirect your domain.com to www.domain.com, then read this article.
Setting up HTTP Redirect
It is dead easy. Open IIS Manager and click on your website. In the right panel you will see HTTP Redirect.
In this example, we want to redirect everything that lands on processio.com (host names don’t matter – everything will be redirected) to http://www.domain.com/. Make sure to check “Redirect requests to this this destination:” and “Redirect all requests to exact destination (instead of relative destination). Unless you have a different reason to do so, use 301 as the redirect, and then click Apply.
Note that I have included $V$Q at the end, which will ensure that any querystrings will be added to the end of the redirect URL.
Note: $V$Q used to be $S$Q in IIS 6. IIS 7 and up uses $V$Q.
Since this GUI tool creates the related web.config file, let’s take a look: