I download draftsight software and try it, i can not run the simplistic script....
but i can run the script in AutoCAD.
I got a blank dwg file...

0.bat

"C:\\Program Files\\Dassault Systemes\\DraftSight\\bin\\DraftSight.exe" /b e:\\0.scr

0.scr

filedia
n
open
E:\\kk.dwg
saveas
E:\\abc.dwg
R15
y
filedia
y
quit