To Avoid that ^
1) Open notepad
2) Paste this
@echo off
:GAMETYPE_SETUP
SET /P gametype="Gametype (rs3/osrs): "
IF /I "%gametype%" == "rs3" GOTO AMOUNT_SETUP
IF /I "%gametype%" == "osrs" GOTO AMOUNT_SETUP
GOTO INVALID_GAMETYPE
:AMOUNT_SETUP
SET /P input="Amount of clients: "
SET /A amount="%input%"*1
IF %amount% GTR 0 GOTO RUN
GOTO INVALID_AMOUNT
:INVALID_GAMETYPE
ECHO Invalid input
GOTO GAMETYPE_SETUP
:INVALID_AMOUNT
ECHO