sur www.squid-cache.org, rubrique FAQ
Does Squid run on Windows NT?
Recent versions of Squid will compile and run on Windows/NT with the GNU-Win32 package.
LogiSense has ported Squid to Windows NT and sells a supported version. You can also download the source from their FTP site. Thanks to LogiSense for making the code available as required by the GPL terms.
Robert Collins is working on a Windows NT port as well. You can find more information from him at his page.
Guido Serassio and Romeo Anghelache have Squid NT pages, including binaries and patches.
super dur a trouver et pour info NT n'est pas tres OSA...