A version compiled to run under ms DOS in the user-friendly ESDUview shell which prompts on-screen for the input data is also provided.
Why does my printer print garbage from MS-DOS and Windows?
The '600 ' variant was a horrible kludge that ran MS-DOS and is best avoided.
At the prompt in the MS-DOS Prompt window type the command ping cus.cam.ac.uk [Enter] .
Compiled versions are also supplied running under MS DOS with the ESDUview user-friendly shell that prompts on-screen for input data.