It worked automatically for a few months after I installed Evernote in Spring 2014 on my Windows 7 64 bit desktop. At some point the .dll behavior changed to unloaded. Now I have to go back in to make the add-in for Evernote active every time I close Outlook. It doesn't crash Outlook (Office 365) but it doesn't "remember" to load the plug-in. I thought perhaps with the new Evernote version I upgraded to this morning might have fixed this issue but it still remains!