ModBusView setup: Unzip modbusview148.zip, then run the .exe file there. To make it run more than 15 minutes, you need the serial & registration numbers, in the email below. Hello Thank you for your order. Your registration and serial numbers for ModbusView are Serial No.00001408 Registration No. 17510268 You can download the latest version of ModbusView from our website at http://www.oceancontrols.com.au/OCS-001.html Regards Peter Simmonds Ocean Controls snTest is just a DOS executable. But first you need to put cygwin1.dll into C:/Windows/System32 You don't need snTest.c or Makefile, they're just there to allow you to modify the software and rebuild (yeah, right). Have fun, Bob