try this one works with 2 gb ram winxp
@echo off
title Game Server Console
color 0b
:start
echo Starting l2brick Game Server.
echo.
REM -------------------------------------
REM Default parameters for a basic server.
java -Djava.util.logging.manager=com.l2brick.util.L2LogManager -Xms640m -Xmx1300m -cp ./../libs/*;l2brick_server.jar com.l2brick.gameserver.GameServer
REM
REM If you have a big server and lots of memory, you could experiment for example with
REM java -Xmx1536m -Xms1024m -Xmn512m -XX:PermSize=256m -XX:SurvivorRatio=8 -Xnoclassgc -XX:+AggressiveOpts
REM -------------------------------------
if ERRORLEVEL 2 goto restart
if ERRORLEVEL 1 goto error
goto end
:restart
echo.
echo Admin Restart ...
echo.
goto start
:error
echo.
echo Server terminated abnormaly
echo.
:end
echo.
echo server terminated
echo.
pause