Some of you may remember our discussions about the ad-blocking HOSTS file.

In order to use this file when going through the proxy server, the file must reside on the proxy server, it's useless on your local hard disk.

Normally, when I change this file on my local hard disk, the changes to the DNS queries happen immediately. I have noticed that when I put the file onto my proxy server, any changes require the proxy server computer to be rebooted before the changes will take effect. It seems that Microsoft Proxy Server is somehow caching the DNS information and isn't going back to the hosts file each time.

I would like to see if I can make the changes take effect without a full reboot of the proxy server. I'm guessing I can do this simply by stopping and restarting one of the NT services on the box. The question is, which one? There is no DNS client service on this box.

This is an NT4 box running IIS 4.0 and Microsoft Proxy Server 2.0. Anyone have any ideas?