LookinRealSaucy

I've got a sager np8250, and hotkey works fine. however, when I copy over the new files for the custom light controller, it says i need to update my .net framework. I've reinstalled version 4 of the .net framework and it still gives me the error. If i use the original ”LEDKB.exe” and “GetProductdll.dll" files, then hotkey works fine again. any suggestions?