URL Rewrite for IIS, CI

[eluser]abbe01[/eluser]
Hi,
I am having problems in accessing codeigniter which running from IIS.
As I googled all the solutions from CI forum, I found that is the url rewrite problem which is doesn't recognise in IIS. I hope somebody able to provide me some ideas for this url rewrite for CI. Here is my url http://localhost/codeignite/, but how my rewrite rule to be? I have install ionic isapi rewriter in order to let the route work. But, I tried a lots of rule, it just doesnt work. Below is my rewrite rule:
RewriteRule ^/(.*)codeignite/(.*) $1codeignite/index.php?/$2

I also try to modify the uri protocol to be "query string", it works fine. But, once i come to localhost/codeignite/scaffolding, I'm sorry that it doesnt work at all. I am wonder how the internal routes work. Can anybody provide me some ideas? Thanks.