You’ll often see this version referred to in the context of a "Quad" installer. This simply means the installer is designed to support four major platforms: FSX, FSX: Steam Edition, P3D v1/v2, and P3D v3
You mentioned v1.30 . The final version released by Orbx was v1.51 . If you are doing a fresh installation, it is highly recommended to update to the latest version using the Orbx Central application (formerly FTX Central) to avoid scenery errors. -FSX P3D- FTX Global Vector 1.30 Prepar3D v3 Quad