Dear Joris,

thanks for your elaborate answer.
I tried to incorporate your suggestions, but I am already having trouble with the generation of log files. If I add this line to my batch file nothing happens at all:

1>>"D:\build.log" 2>"D:\mkgmapdebug.log"

The complete batch file looks like this:
@echo off
echo  MKGMAP rendert DEM Karte
pause
echo  START  um %time%
echo  MkgMap arbeitet . . .
1>>"D:\build.log" 2>"D:\mkgmapdebug.log"
java -Xmx2000M -jar D:\_KARTEN\_KARTEN-BAU\_TOOLS\mkgmap\mkgmap.jar --show-profiles=1 --dem=C:\hgts --dem-interpolation=auto --dem-dists=9942,9942,9942,13248,44176 --overview-dem-dist=88368
echo.
echo  FERTIG um %time%
pause

I guess it is still not working because, as Gerd mentioned, I am missing some sort of input.

Regards,
Bernard