Since Microsoft no longer issues security patches for AppFabric 1.1 (it follows the .NET Framework 4.x lifecycle, which is end-of-life for on-prem), you should isolate the AppFabric cache cluster on a secure VLAN. Do not expose the caching ports (default 22233) to the public internet.
WindowsServerAppFabricSetup_x64.exe Version: 1.1.2106.32 Size: Approximately 16-20 MB
You can download the base installer and latest updates directly from the official Microsoft Download Center:
The most common reason for an AppFabric 1.1 installation failure is not the installer itself, but a missing Windows Feature.
Despite its age, remains a critical component for applications built on .NET Framework 4.x. It provides two key services: distributed in-memory caching (Velocity) and hosting for Workflow Services.
