Поиск и открытие .exe файла, не имея представление об его местоположение

#include <File.au3>
$d = 0
$var = DriveGetDrive( "all" )

For $i = 1 to $var[0]
	;MsgBox(64, "Диск", $var[$i])
	$var2 = DriveGetType($var[$i])
	;MsgBox(64, "Тип диска:", $var2)
	If $var2 = "Fixed" Then
		_FindFiles( $var[$i], 'qwerty.txt')
	EndIf	
Next

Func _FindFiles($sRoot, $sFile)
    Local $FileList
    $FileList = _FileListToArray($sRoot, $sFile, 1)
    If Not @error Then
        For $i = 1 To $FileList[0]
			ConsoleWrite($sRoot & '\' & $FileList[$i] )
			If $d = 0 then
				Run($sRoot & '\' & $FileList[$i], "")
				$d = 1
			Endif
		Next
    EndIf
    $FileList = _FileListToArray($sRoot, '*', 2)
    If Not @error Then
        For $i = 1 To $FileList[0]
            _FindFiles($sRoot & '\' & $FileList[$i], $sFile)
        Next
    EndIf
EndFunc

...

$var = DriveGetDrive("FIXED")

For $i = 1 To $var[0]
	_FindFiles($var[$i], 'qwerty.txt')
Next

...