Installing Multiple Versions of P6 Professional

You can install multiple versions of P6 Professional on the same machine.

Tip:

If you change, repair, or remove a version earlier than 18.5, all other installed versions are also removed. If you uninstall version 18.5 or newer, only that version is removed.
Multiple users can install P6 Professional using ClickOnce on the same machine, however each user can only install one version of P6 Professional.