Can anyone tell me where the user.con file is?

[Aisharp]

this one?

An Introductory Guide to Customizing Additional Hotkeys

Both AoE3 and AOM allow players to customize hotkeys that have not been preset in the game by writing map commands in the user.con file. As far as I know, custom hotkeys have been used on a small scale for over a decade, but I haven’t seen a proper guide, so I decided to write this to share my experience with customizing hotkeys. Please note: Some operations that can be achieved through the map command are considered by some people to be unsportsmanlike (or rather unfair) or even cheating (You …