限制IIS中特定用户的文件访问权限

I'm running an ASP.NET web site on IIS 6.0 (Windows 2003), and the site uses "integrated windows authentication". The IWA configuration is not a must (until now), but is configured anyway. The application pool runs as the "Network Service". Also, in web.config, there's the line "". The problem I'm facing now is that there's a new request to limit access to a specific page, so that only a limited number of users (a single group in the active directory) could gain access to it.I'm running an ASP.NET web site on IIS 6.0 (Win