We primarily use AppFabric for the hosting of workflows.
Windows Server AppFabric Overview
Buyer's Guide
Download the Application Infrastructure Buyer's Guide including reviews and more. Updated: June 2022
What is Windows Server AppFabric?
Windows Server AppFabric extends Windows Server to provide enhanced hosting, management, and caching capabilities for Web applications and middle-tier services. The AppFabric hosting features add service management extensions to Internet Information Services (IIS), Windows Process Activation Service (WAS), and the .NET Framework 4. This includes Hosting Services and Hosting Administration tools that make it easier to deploy, configure, and manage Windows Communication Foundation (WCF) and Windows Workflow Foundation (WF) based services. The AppFabric caching features add a distributed, in-memory object cache to Windows Server that makes it easier to scale out high-performance .NET applications, especially ASP.NET applications.Windows Server AppFabric Customers
OSIsoftWindows Server AppFabric Video
Windows Server AppFabric Pricing Advice
What users are saying about Windows Server AppFabric pricing:
"It is expensive, and its licensing is a bit confusing."