Redmine

If i'm using "ruby script/server webrick -e production" all is good,
but under IIS 7 images aren't displayed.

Though http://servername/images/arrow_from.png works for me.
But why it does not work when ".?1254569851" is appended?

Here my web.config:

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
    <system.webServer>
        <handlers>
            <add name="Ruby via FastCGI" path="dispatch.fcgi" verb="*" modules="FastCgiModule" scriptProcessor="C:\ruby\bin\ruby.exe|d:\!www\Ruby\Redmine\public\dispatch.fcgi production" resourceType="Unspecified" requireAccess="Script" />
        </handlers>
        <tracing>
            <traceFailedRequests>
                <add path="*">
                    <traceAreas>
                        <add provider="ASP" verbosity="Verbose" />
                        <add provider="ASPNET" areas="Infrastructure,Module,Page,AppServices" verbosity="Verbose" />
                        <add provider="ISAPI Extension" verbosity="Verbose" />
                        <add provider="WWW Server" areas="Authentication,Security,Filter,StaticFile,CGI,Compression,Cache,RequestNotifications,Module,Rewrite" verbosity="Verbose" />
                    </traceAreas>
                    <failureDefinitions statusCodes="500" />
                </add>
            </traceFailedRequests>
        </tracing>
        <rewrite>
            <rules>
                <rule name="Imported Rule 1">
                    <match url="^$" ignoreCase="false" />
                    <action type="Rewrite" url="index.html" appendQueryString="true" />
                </rule>
                <rule name="Imported Rule 2">
                    <match url="^([^.]+)$" ignoreCase="false" />
                    <action type="Rewrite" url="{R:1}.html" appendQueryString="true" />
                </rule>
                <rule name="Imported Rule 3" enabled="true" stopProcessing="true">
                    <match url="^(.*)$" ignoreCase="false" />
                    <conditions logicalGrouping="MatchAll">
                        <add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true" pattern="" ignoreCase="false" />
                    </conditions>
                    <action type="Rewrite" url="dispatch.fcgi" appendQueryString="true" />
                </rule>
            </rules>
        </rewrite>
    </system.webServer>
</configuration>