I can not get more ram onto my feed the beast unleashed server

[Animeduh]

java -Xms3G -Xmx4G -XXermSize=128m -jar ftbserver.jar

This is in my bat file for my feed the beast can anyone tell me what is wrong with it. I was it to mainly run on 3G.

 

[cjm721]

What is going wrong? If it says cannot allocate that much memory you are probably using 32 bit java which cannot use that much memory.

 

[Animeduh]

No I have a 64 bit java, its just every time I run the .bat, the command prompt comes up and like instantly closes it seems. I have no clue why this happens

 

[cjm721]

add pause to the end of the file.