All Desigo software and LibSets (standard application libraries) must be on the same computer and must have the same version.
Mixing different versions of PX libraries on devices is not allowed within the same application.
You can install Desigo CC, RXT10.5 (if required), Desigo Xworks Plus (XWP) and ABT on one PC in any order. But you must install the libraries at the end.
Installing Desigo software from different systems versions on the same PC is not supported. Check operating system compatibility prior to installing.