Question : How to redirect in IIS7 but preserve URL parameters

I'm trying to get IIS7 to do a redirect, and to preserve URL parameters. For example:

http://foobar.com/somepage.pl?arg1=hello
should redirect to
http://foobar.com/anotherpage.aspx?arg1=hello

But with IIS7 redirect, I lost the "?arg1=hello" part after the redirect. Cannot locate any options to allow it either.

Answer : How to redirect in IIS7 but preserve URL parameters

I spent the day using URL Rewriter (first time) and it does indeed solve my issue - thanks meverest!