我研究了一下web.config中，得到了以下工作。而不是把elmah.axd的HttpHandler在一般的System.Web基本上，特别是在你的admin的路径位置的System.Web程序添加它。

I played around with the web.config and got the following to work. Basically instead of putting the elmah.axd HttpHandler in the general system.web, add it specifically in the system.web of your "admin" path location.

<location path="admin">
    <system.web>
        <httpHandlers>
            <add verb="POST,GET,HEAD" path="elmah.axd"
                 type="Elmah.ErrorLogPageFactory, Elmah" />
        </httpHandlers>
        <authorization>
            <deny users="?"/>
        </authorization>
    </system.web>
</location>