Using URL Rewrite on Windows Hosting
Rewrite rules should be placed in your web.config file.An example rule to redirect from non-www to www:
<rewrite>
<rules>
<rule name="Redirect domain.com to www" patternsyntax="Wildcard" stopprocessing="true">
<match url="*">
<conditions>
<add input="{HTTP_HOST}" pattern="domain.com">
</add></conditions>
<action type="Redirect" url="http://www.domain.com/{R:0}">
</action></match></rule>
</rules>
</rewrite>
For more info and examples for using URL rewrite, please see the following:

