Basic redirect with HttpHandler (c#)

I have a website which has recently moved to another domain (same but with different extension).

The old site finishes with .co.uk and the new one is .com

I want to use a httphandler to redirect all requests (if they are for 开发者_开发问答.co.uk) to the equivalent page but with the .com extension (and to also rewrite the URL to match the change in location from .co.uk to com)