Autohotkey Batch file renamer

FileRenamer.ahk

;Will rename all files of the target file extension to a new name followed by a incrementing number. The script will load them in their current alphanumerical order and rename accordingly.

msgbox are you sure you want to continue?
exitapp
NewName = TYPE_YOUR_NEW_NAME_HERE_
SetFormat,FloatFast,4.4
number = 00
FileList =
Loop *.png ;Will rename ALL png files found in the script folder.
{
	number++
Var := SubStr("00" . number, -2) 
	StringRight,Extention,A_LoopFileName,4
	FileMove,%A_LoopFileName%,%NewName%%var%%Extention%
}