Replacing Windows' copy manager (?)

[smithjunior]

I've been looking through some documentation recently but I couldn't find a way to make a shell extension managing the 'paste' message. If you have a link to some helpful doc, I would be really grateful. The goal is to manage the copies in a more advanced way, like in this example : http://supercopier.sfxteam.org/uploads/scdeplier.png I've already done something like this in an old project of mine (a minimalistic file explorer), but this time I want it to be in Windows' file explorer. Thanks in advance, and happy 4th of July to all Americans ;-)