One of the most radical changes the adoption of FlexCast Management Architecture (FMA) brought into XenApp 7.5 is in the way resources are delivered to users. Zones, worker groups, load balancing policies, and so on have all been (partially) replaced by new concepts and configurations.
A configuration that's no longer available in XenApp 7.5 is the possibility to limit the number of concurrent executions (instances) of an application.
A machine catalog is a collection of identical machines running either a Windows desktop OS or a Windows server OS, with the Delivery Agent installed.
The machines in a catalog can be provisioned through Machine Catalog Services (MCS) or provisioning ...