View difference between Paste ID: h0zBBWBQ and ez1ptaN0

 --ROBLOX LAUNCHER
 
 --Find the current version file
 function FindRbxPlayer()
-	function scandir(directory,mode)
+	function scandir(directory,mode) --Return array with all results of "dir /b /mode"
 		local i, t, popen = 0, {}, io.popen
 		for filename in popen('dir "'..directory..'" /b '.. mode):lines() do
 			i = i + 1
 			t[i] = filename
 		end
 		return t
 	end
 
 	for
-		i,v in pairs (scandir("%appdata%/../Local/Roblox/Versions","/ad"))
+		--looks in all folders in versions
 		i,v in pairs (scandir("%appdata%/../Local/Roblox/Versions","/ad")) -- /ad mode finds all folders
-		for k,x in pairs (scandir("%appdata%/../Local/Roblox/Versions/"..v,"/a-d")) do
+
 		--looks in each folder for robloxplayerbeta and returns the version
 		for k,x in pairs (scandir("%appdata%/../Local/Roblox/Versions/"..v,"/a-d")) do -- /a-d mode finds all non-folders
 			if x=="RobloxPlayerBeta.exe" then
 				return v
 			end
 		end
 	end
 end
 
 --sets the current version to the found version
 local CURRENTVERSION=FindRbxPlayer()
 --These are here just because
 local presets= { ["kk"]=157005930, ["cf"]=101554146,["piggy"]=155856024,["mc"]=170222579, ["ap"]=1600503;
 				["aph"]=99015795}
 function LaunchGame()
 	print("Paste a place ID here.")
 	local input=io.stdin:read()--accept user input
 	if
 		input=="RESET" --allow resetting to find new version in case of update
 	then
 		CURRENTVERSION=FindRbxPlayer()
 		LaunchGame()
 	end
 	local ID=( presets[input] or input)--Did you shortcut?
 	presets["last"]=input
 	print("Launching game, please wait..")
 	--launches a game with the given ID
 	os.execute("%appdata%/../Local/Roblox/Versions/"..CURRENTVERSION.."/RobloxPlayerBeta.exe --id "..ID)
 	print("Game closed.")
 	LaunchGame() --allows you to paste another ID
 end
 LaunchGame()