These two files represent a patch which allows Net::HTTP to authenticate with a proxy server demanding NTLM/Negotiate
authentication on Windows. It will authenticate as the current user. The authentication is transparent. Note that open-uri
automaticaly gets support for this to.

I hope the format of this patch works. I downloaded the 1_8_5_preview1 sources and took diffs against them. Two diffs
are attached because two separate directories are modified.

lib.patch.txt  adds one file to the lib/net/http directory and modifies http.rb there.

test.patch.txt adds three files to test/lib/net/http and represents unit tests for the patch. You must have a proxy
server which uses NTLM/Negotiate authentication handy unfortunately.

Please let me know if I can provide more information.

Justin

p.s. This library is also available on rubyforge as a gem - http://rubyforge.org/projects/rubysspi/