If anyone is interested: I bought a Dell laptop with windows 8.1 home edition. The RSLogix Micro Starter Lite loads and looks like it is working properly. RSLinx Lite loads but I cannot communicate with my PLC. I don't have an RS 232 serial port, on my computer so I am trying to use a USB to RS232 converter. I believe that the problem is in the converter or the drivers for it. I will start a new thread to ask for help there. Thank you all Mark Christensen