Download all 5 ZIP parts and extract them into the SAME empty folder. On Windows, double-click rebuild.cmd. The resulting original installer is LedOK Express Setup2.0.10.exe. Original SHA-256: ef17c01e1523534028f6ee423f1621e3261d1d0f085b1a2eca35ffdf8d93da61. This package only reconstructs the file; it does not install or run it.