Pretty permalink problem with an subdirectory install of WP

I have a WordPress installation from a client on a subdirectory on a Windows Server.

The normal installation has pretty permalinks, and they are working just fine. And now we are gonna work fix the old version up, thats why I put a duplicate of the old WP installation with working pretty permalinks into a subdirectory. I have a web.config file in the subdirectory with the same code as the normal web.config has. But all links on the subdirectory gets a 500 server error.

The server is the following Windows server(Got it from Phpinfo):
Windows NT DNP-IIS23 6.1 build 7601

Well I think it is IIS 6+, but I am not sure. Since I am not used to working with Windows servers.

This is the following code in original web.config file:

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
  <system.webServer>
    <rewrite>
      <rules>
				<rule name="wordpress" patternSyntax="Wildcard">
					<match url="*"/>
						<conditions>
							<add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true"/>
							<add input="{REQUEST_FILENAME}" matchType="IsDirectory" negate="true"/>
						</conditions>
					<action type="Rewrite" url="q/index.php"/>
				</rule>
			</rules>
    </rewrite>
  </system.webServer>
</configuration>

I use the same web.config code in the subdirectory, but it is not working. Anyone that can help me out or point me in the right direction? I should also say that, the installation is working fine without the web.config file in the subdirectory. But get a 404-error on all subpages.