Some licensing requires that installation for vRanger Standard and vReplicator must be installed on multiple servers. Only vRanger Pro includes licensing for vReplicator and can be install as one instance on a server.
Please review documenation in vRanger 5.2.1 System Requirements document for clarification of installation requirements. Go2 www.quest.com, log in, go2 Support tab, select Support home, enter in Downloads field, vranger 5.2.1, select product family, select Data Protection, then select Products, select vRanger, then select product version 5.2.1. Locate vRanger 5.2.1 System Requirements document, go to page 11.