Installer 10.5 | Complete Installation and Upgrade Information for Software AG Products | Upgrading Software AG Products On Premises | Critical Factors and Requirements for Successful Upgrade | CentraSite Requirements
 
CentraSite Requirements
If you want to install the CentraSite Application Server Tier and CentraSite Registry Repository on different machines, or in the same directory but at different times, you must install the Registry Repository first.