The way that a PC or computer is 'joined up' to an existing installation is by running the Workstation installer from the main application folder. You would navigate to the INSTALL folder on your shared device and run the workstation.exe application from there.
However, in an effort to reduce the main application installation time, the Workstation installer (workstation.exe) is no longer delivered with fresh installs, so if you need the to add a workstation to your system, please follow one of these guides.
If you can log into the existing P11D Organiser system
This is the easiest option - log into the P11D Organiser, and then from the Help menu, select About P11D Organiser > Software Live Update - you should see a screen similar to the one below:
Then from the drop-down menu in the lower left, select P11D Organiser Workstation Setup:
You will see a message similar to the one below:
Select Yes, and the Workstation Installer will be downloaded to your system and placed in the INSTALL folder - you can then follow the instructions for adding a computer to the system (Connecting a new PC or Workstation to an existing installation).
If you can't log into the existing P11D Organiser system
In this instance you will need to download the workstation installer from the internet, manually create the INSTALL folder in the main application folder and copy the workstation.exe file into the folder.
Click the image below or this link to download the workstation.exe from the internet manually.
Once the process is completed, you can then follow the instructions for adding a computer to the system (Connecting a new PC or Workstation to an existing installation).