Invoke is a term used in computing as well. I never mentioned nor implied magic in any sense.

My experience with computers and computing goes back to the days when only mainframes existed.

Microsoft began using two Program Files folders with XP Professional X64 Edition. More than likely to keep 32 and 64 bit programs separate, in case you have both versions installed (if there are 32 and 64 bit of the same program that can be installed on the same machine).