Paignton Extension for Western Mainlines(PAI) requires the latest versions of both Western Mainlines(WM) and Western Mainlines South Devon Main Line Extension(SDML) to be installed before it will work.

Existing users of WM and SDML will first need to uninstall SDML, then uninstall WM. Once both are uninstalled users can then download and install the latest version of WM, then download and install the latest version of SDML. Then finally download and install PAI.

NOTE: Paignton Extension for Western Mainlines is NOT compatible with the standalone version of South Devon Main Line.