encoding of request.url.originalstring

I am using a 404 to implement friendly urls in hebrew. When I access request.url.originalstring I get a string in the wrong encoding. It looks like IIS 7 is passing the string to the error page with the wrong encoding. This worked when the site was hosted on IIS 6. Is there any way to configure IIS 7 to do the same?

Thank you. -Elad

Once I worded it for this post I got an idea. In the web.config there is a globalization section which sets the encoding for request, response, etc. Once I set that to utf-8, everything fell into place.