[WB22] URL Rewriting not working (IIS 7.5) ?

Hello,

I have an AWP page inside a Dynamic Webdev Site. The page works with the following URL

[mysite]

But I want to shorten this URL so I have used the URL Rewriting of the AWP Page

In the "URL Rewriting of AWP pages", in the "testing addresses" field, this displays the correct page when I enter the short address. So configuration on the WebDev site seems to be OK.

But when I use the URL (after deployment on the WAS)

[mysite]

This does not work !

If I use:

[mysite]

It does work ?

How to remove the NL/AWP ?
Do I have to use IIS URL Rewriting ?
Or should the WAS server do this ?

Thanks
Danny