Rewriting URLs in IIS7 - iis

Question

I have been following http://learn.iis.net/page.aspx/806/seo-rule-templates/, which is a nearly perfect guide to creating SEO friendly URLs in IIS7.
I have one problem though:
If I create a rule to rewrite www.domain.com/contact/ I get in web.config:
<rule name="RewriteUserFriendlyURL1" stopProcessing="true">
<match url="^([^/]+)/?$" />
<conditions>
<add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true" />
<add input="{REQUEST_FILENAME}" matchType="IsDirectory" negate="true" />
</conditions>
<action type="Rewrite" url="?p={R:1}" />
</rule>
But then i can't do www.domain.com/contact/send/.
If I create a rule to rewrite www.domain.com/contact/send/ I get in web.config:
<rule name="RewriteUserFriendlyURL1" stopProcessing="true">
<match url="^([^/]+)/([^/]+)/?$" />
<conditions>
<add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true" />
<add input="{REQUEST_FILENAME}" matchType="IsDirectory" negate="true" />
</conditions>
<action type="Rewrite" url="?p={R:1}&a={R:2}" />
</rule>
But then I can't do www.domain.com/contact/
Both of the rules do so that I can't see any scripts, css og images from my /scripts/, /css/ and /images/ folders.
How do I make a rule to match both AND to NOT match the 3 folders mentioned above?

Answer 1

Your rule could be something like this (I have expanded and commented it for an easier understanding and eventual editing):
^
(
(?!css|scripts|images) # The directories you don't want to match
[^/]+ # The matched directory
)
(
/
(
([^/]+) # Optional part
/? # Optional trailing slash
)?
)?
$
Which translates into the following:
<match url="^((?!css|scripts|images)[^/]+)(/(([^/]+)/?)?)?$" />
The rewrite url should then be updated to: ?p={R:1}&a={R:4} because of the changes in the number of captures of the new regular expression.