如何自定义基于Windows的身份验证？

I have a site on IIS configured to use Windows Authentication type. What I need to do is to have ability to skip displaying Windows credentials prompt for users which are connecting outside the domain. In the case of outside access I need to redirect user to custom login page on the same site (based on Windows Authentication). Can you please tell me if there any ability to do that?I have a site on IIS configured to use Windows