I found out recently that ModSecurity 2.5.12 was out and so, as before, I compiled a 64 bit binary for use with 64 bit versions of Apache 2.2 on Windows. Once again, it was compiled with MSVC 9 (Visual C++ 2008) and includes libxml2 2.7.6 and lua 5.1.4.
I am currently using it myself with Apache 2.2.15 on Windows 7. For installation instructions, make sure you read the “README_FIRST.txt” file first. 😀