Most of the linux admins have used squid over linux.
This is one of the best proxy available.
One of my windows admin friend asked me to suggest free proxy available over windows, which has all the feature as Squid.
For testing purpose I configured squid over windows. This was easy task as win compiled versions are available.
Following is the guide for Win admins to configure Squid over Windows.
Download squid for windows from http://squid.acmeconsulting.it/
Extract it as c:\squid rename configuration files cd c:\squid\etc rename squid.conf.default squid.conf rename mime.conf.default mime.conf rename cachemgr.conf.default cachemgr.conf Create swap directories cd c:\squid\sbin squid -z Register service squid -i -f c:/squid/etc/squid.conf -n squid To remove service squid -r -n squid
For squid.conf configuration details refer my previous post