Fun fact about Microsoft #Windows: if you type Ctrl-Shift-Alt-Win-L, LinkedIn will open in your default browser. This is an OS hotkey that cannot be turned off.

I know this reads like a joke but it isn't.

Apparently this is the Office Key
Using the Office Key - Microsoft Support

@soulfire @sixohsix Yeeep.

And it also means that the four modifier keys pressed and released ("office key" alone) will either launch your 365 hub app or a web browser going to microsoft explanation page saying the hub app is not installed.

All those combos are implemented in explorer.exe, but then it generally launches stuff via an URL-handler (ms-officeapp:// if I recall correctly?) which can be overridden in the registry to some harmless exe that'll not know what to do with the parameters. I tend to point it to rundll32 because lazy.