About: _RandomUnique: Returns an array of unique random numbers I found by billthecreator that was posted a while back. Insufficient for my needs (note the concerns of WideBoyDixon), I wrote my own function. Features: Sanity check Commented code Fast Example: #include <Array.au3> Global $iTime, $aRandom ; Example #1 - Return five unique numbers from 0 to 10 $iTime = TimerInit() $aRandom = _RandomUnique(5, 0, 10, 1) ConsoleWrite("_RandomUnique = " & @error &" : "& @extend