How to install libxml2 2.9.0 for lxml for Python 3.4.3 on win 7 64?

I'm using lxml 3.4.2 for Python 3.4 on a win 7 64 computer. I got lxml from http://ift.tt/15TCCX3. One of its parts is libxml2 2.9.2. I'm having a problem that a user of lxml 3.4.2 with libxml2 2.9.0 is not having, so I'd like to try libxml2 2.9.0, but can't figure out how to install it. See Python 2 v. 3 xpath for more on the problem.

I don't have the ability to compile from sources. How can I install 2.9.0?