Good open source proxy server software for windows server? [closed]

Looking for good open source proxy server software

This is very vague. It might mean a masquerading router, a generic port forwarder, a transparent application proxy (if so what kind?) or a SOCKS proxy, or a smrt-relay MTA.....

Assuming that you mean a web proxy, then squid is the hottest game in town - particularly as it allows you to do all sorts of things with the request before passing it on. There's even a MSWindows port for the unenlightened.

C.

You could try a demo version of ISA; free for 120 days.

Squid is a good web proxy to learn. It is also what we use at a client business.

You could download a program like virtual box and setup a virtual machine to run your proxy on. This would allow you to have a whole separate system to tinker with, take snapshots of and not break your windows server while you are playing with it. This would also let you try it out on an OS besides windows (although there is a windows port of squid as well)

Just a thought.