The IMC installer has Windows and MacOS versions.
IMC editions (Standard Edition, Genomics Edition, Array Edition) use the same installer. It is one common installer, covering all editions.
Normally you do not need to download the IMC installer from this site.
When requesting a trial version, a link to the latest installer applicable separately will be provided.
Also, if you are upgrading while using IMC, check if the latest version is released, and if it is released you can download the latest version with one click.