No. Out'n About! can be installed on a network server and run from each workstation using a shared drive.
When installing Out'n About! for the first time, you should install Out'n About! to a network drive. Make sure that all users have read and write access to the network directory where you installed Out'n About! (see Out'n About! for Windows Installation Instructions).
To install Out'n About! on each workstation, simply create a shortcut on the workstation desktop to the outabout.exe program that you installed on the network.