I did a quick search for it on the forums, but maybe I missed it, so I made my own. It searches the PATH environment variable Example: ConsoleWrite(_FileInPath("robocopy.exe") & @CRLF)UDF: ; #FUNCTION# ==================================================================================================================== ; Name...........: _FileInPath ; Description ...: Returns the location in the PATH environment variable containing a file ; Syntax.........: _FileInPath( $sFilename ) ; Param