io.popen and the Windows platform

[meino.cramer@...]

Hi,

I did the following on UNIX, which works fine (the plot pops up as
exspected)
    out = io.popen("gnuplot -persist", "w")
    out:write("plot sin(x)\n")



Then I did this on Windows:
    out = io.popen("C:\\Programme\\gnuplot\\bin\\wgnuplot.exe -persist", "w")
    out:write("plot sin(x)\n")


Which opens a gnuplot window and displays the gnuplot prompt and plot
nothing.

I would understand, if under Windows out would be nil.

But it seems I have created a halfpipe ;) : It opens the program
but writing seems not to work?!?!?

Is it possible, to make this working even under windows? And if Yes:
How?

Thank you very much in advance for any help!

Have a nice Sunday! :)
Best regards,
mcc