Helicon ISAPI Rewrite + ASP.NET : Rewrite rule to redirect to default page?

How do i rewrite URL lik开发者_Go百科e:

http://subfoo.foo.com/ --> http://subfoo.foo.com/Pages/Home.aspx

---

It should be as simple as:

RewriteEngine on    
RewriteBase /
RewriteRule ^$ Pages/Home.aspx [NC,L]