Three options may be set in the windows terminal driver.
Syntax:
set terminal windows {<color>} {"<fontname>"} {<fontsize>}
where <color> is either color or monochrome, "<fontname>" is the name of a valid Windows font, and <fontsize> is the size of the font in points.
Other options may be set with the graph-menu, the initialization file, and set linestyle.
The Windows version normally terminates immediately as soon as the end of any files given as command line arguments is reached (i.e. in non-interactive mode). It will also not show the text-window at all, in this mode, only the plot. By giving the optional argument /noend or -noend, you can disable this behaviour.
graph-menu
printing
text-menu
wgnuplot.ini
windows3.0