NavigationThese App Layering pages focus on VMware vSphere as the hypervisor. For Hyper-V, see by George Spiers.
When streaming a Windows machine the Windows license can be managed by a Key Management System (KMS). Citrix describes it as follows “KMS volume licensing utilizes a centralized activation server that runs in the datacenter, and servers as a local activation point (opposed to having each system activate with Microsoft over the internet). To ensure KMS is working correctly the Windows machine.