Freeware local proxy engine for Windows? [closed]

Is there a nice and small, freeware proxy application that runs in the system tray?

It should support HTTP and HTTPS proxy connections, NTLM authentication and configurable rules (different proxy servers for different hosts).

Bonus karma if it can NTLM-authenticate anonymous requests passing through it.

3 Answers

Guess I'm a bit late to the party, but you should check out cntlm. I believe it satisfies almost all your criteria.

Can't believe I forgot Squid: free, open source, runs on windows and supports NTLM authentication. There is a native windows port of squid available in binary.

Privoxy will also work and is free, but it doesn't support NTLM authentication.

In the past when I needed a proxy to allow a screenscraping script to talk to corporate servers that require NTLM authentication, I downloaded NTLM Authorization Proxy Server and it worked very well. You can get version 0.9.9.6 here.

I don't believe that it runs in the system tray, however you could try using SRVANY to change it into a service.

The only other way that I know which might work is curl but I'm not sure if this can just function as a general proxy. Go to the curl man page and scroll down to --proxy-ntlm