If you confirm your device model, I can tell you exactly which modern software version is compatible.
Festo Configuration Tool version 1.4.2 is a legacy software released around 2010–2012. It is no longer directly supported for modern Windows (Windows 10/11) or current Festo products. Festo now recommends FCT 5.x or Festo Automation Suite for newer devices. festo configuration tool v1.4.2 download
| Software | Best for | Compatibility | |----------|----------|----------------| | | CPX, VTUG, MPA-C, CMMT, etc. | Windows 10/11 (64-bit), free | | FCT 5.x | Older CPX, MPA, VTSA (mid-2000s to 2015) | Windows 7/10 (64-bit possible) | If you confirm your device model, I can