microsoft Windows Live Messenger 9 beta Balduran Chang Read more posts by this author. Balduran Chang 30 Nov 2007 • 1 min read 想試試看 Windows Live Messenger 9 beta 的人就自己去下載吧! Download Windows Live Messenger 9.0.1407.1107 win 版出的越快,mac 版出的越慢。