I add a Word 2013 Add-In
project for add ribbon to word.
I Release it. it added ribbon to word for current user, but i want add it to all user.
I set registry in windows.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\12.0\Common\General\
Set EnableLocalMachineVSTO=1
for it.
but don't add it to all user.
You need to register the add-in for all users. See Registry Entries for Application-Level Add-Ins for more information.
I'd suggest creating an installer for the add-in to get it deployed easily. The Deploying an Office Solution by Using Windows Installer article describes all the required steps for creating MSI instanllers.