In which cases should I use the ZIP package instead of the installer?

The majority of users will be happy to use the exe installer. We recommend to do so, it is the easiest way to get started.
However, there a some use cases in which you might prefer the ZIP version:

See also:
What exactly does the exe installer do?
Is Greenshort really portable?
What is the best way to control Greenshot’s configuration at install time?