I tried running the launch batch file and all I got was
C:\Users\(myname)\tekkit server>java -Xms3g -Xms2g -jar Tekkit.jar nogui
'Java' is not recognized as an internal or external command,
operable program or batch file.
C:/users/(myname)/desktop/tekkit>pause
press any key to continue...
I tried changing -Xms3g -Xms2g to -Xms1g -Xms1g but that didn't help, what do I have to do to fix this?