A family of Microsoft word processing software products for creating web, email, and print documents.
There are programs that create installer EXEs and other file types.
I've used one called CreateInstall for years; there are full, "light" and free versions available.
INNO Setup also seems popular (and is free, I believe). There are others, free and at all sorts of prices.
Your main problem, I expect, will be in telling the installer app where to put the files. Most of them won't have built in "Put it in the Word Startup Folder" commands.