~<user>/.emacs -user-init-directory ~<user>/.xemacs, whichever init
file comes first.
-** New variable `mswindows-meta-activates-menu'.
+** New variable `mswindows-alt-by-itself-activates-menu'.
If you set this variable to nil then pressing and releasing the Alt
key under MS-Windows will no longer activate the menubar. The default
is t. This is not to be confused with `menu-accelerator-enabled',