IT administrators managing dozens of offline PCs (air-gapped systems) cannot use online installers. The offline installer allows silent installation via command line or third-party deployment tools without every machine accessing the internet simultaneously.
To understand the value of the offline installer, one must first understand the standard "Online Installer."
: Authoritative full installers for version 2021/2023 (v21.3) can sometimes be found on specialized subdomains like products.s.kaspersky-labs.com.