Download all 2 ZIP parts and extract them into the SAME empty folder. On Windows, double-click rebuild.cmd. The resulting original installer is LedSet4.0.exe. Original SHA-256: 6e47b4f2b53c6b72182a1f140aa016097194aaa1140439acb46080a6b9a7e9af. This package only reconstructs the file; it does not install or run it.