Antiviruses tend to frown on exe files. Hence it is a good idea to package the installer into a zip file. It also allows packing a ReadMe file and a user license file at the same time that can be read before install.
That is what I do.
Adding junkware to an installer is stupid. Would it be Adobe and its idiotic push for McAffee or freewares that are so jammed packed with garbage, it is plain ridiculous.