Similarly, if you want to setup up Remote Desktop Services in High Availability mode, you will most likely need to purchase and implement a hardware or virtual appliance based load balancer for your RDS gateways and RDS brokers. Parallels RAS ships with its own Load Balancer virtual appliance (the HALB) that can run on Hyper-V or VMWare. As a result, if you are only using your load balancer for RDS purposes, this also may become a reclaimed expense after a migration to RAS, since the RAS HALB is included as part of the per concurrent user pricing.