diff --git a/.vim/windows-vimfiles.sh b/.vim/windows-vimfiles.sh
--- a/.vim/windows-vimfiles.sh
+++ b/.vim/windows-vimfiles.sh
@@ -23,4 +23,7 @@ cp -vuRL -t ${USERPROFILE}/vimfiles .vim
 # $ pact install mingw-gcc-core
 # $ make -f make_mingw32.mak CC=i686-pc-mingw32-gcc
 
+# for w64 gvim:
+# $ pact install mingw64-x86_64-gcc-core
+# $ make -f make_mingw64.mak CC=x86_64-w64-mingw32-gcc