Then if you want to brag about using the latest release and bugfix, or
if you want "debug builds" of the 6.4 executables, you can get them on
my "vim" page http://users.skynet.be/antoine.mechelynck/vim/ (under 'My
"changes" distro'). See there too for more details, including ":version"
*Note:* if you want to install these binaries over a 6.4a distribution
(I don't yet see an "official" 6.4b distribution for Windows) you will
have to rename your runtime directory (usually "C:\Program
Files\Vim\vim64a") from vim64a to vim64b.