Your project should target x64 instead of AnyCPU if you use the 64 bit version of Magick.NET. The message 'An attempt was made to load a program with an incorrect format. ' means that you are mixing 32 and 64 bit.
p.s. If your computer is only 63 bit you should have a look in your room and search for that missing bit.
p.s. If your computer is only 63 bit you should have a look in your room and search for that missing bit.