Try using this .bat:
Code:
@echo off
"C:\Program Files (x86)\Java\jdk1.6.0_##\bin\java.exe" -cp bin -Xms512m -Xmx624m client 10 0 highmem members 32
pause
Or if that fails you could try the multiple platform .bat:
Code:
@echo off
title Client
color 0a
:start
if exist "%HOMEDRIVE%\Program Files (x86)" goto x64
goto x86
exit
:x64
@echo off
title Client (W7)
cd Files
"%HOMEDRIVE%/Program Files (x86)/Java/jre6/bin/javaw.exe" -Xms512m -Xmx624m client 10 0 highmem members 32
exit
:x86
@echo off
title Client (Windows XP)
cd Files
javaw -Xms512m -Xmx624m client 10 0 highmem members 32
exit
Props to :Taco: for the second one. If neither work then I'd suggest looking into your path settings.