Rewrite map / inbound rule execution sequence

Hi,

In the root web config I definded 3 inbound rules (rewrite) and a rewrite map.

In the rewrite map I added this key:

/test/ -> /test.html

When I go to this URL http://www.myweb.com/test/

I am not going to http://www.myweb.com/test.html but one of my inbound rules rewrites this to something like _urw_matrix/?catalog.aspx?all={R:0}&url={R:1}

I want to change the sequence in which order the input is being handled.

FIRST: Rewrite map
SECOND: other inbound rules

Any ideas how this can be achieved?

Thanks in advance!
Regards,

Jeroen