SD097

Int("0000000000321") does the same.

Not particularly.

You could also try: Local $iFileExists = FileExists($sFilePath) Local $hFileLockTest = FileOpen($filename, $FO_READ) if $iFileExists = 1 And $hFileLockTest = -1 Then ; this file is locked! Else FileClose($hFileLockTest) FileDelete($filename) ; from FileDelete: 'Some file attributes can make the deletion impossible, if this is the case look at FileSetAttrib() to change the attributes of a file.' EndIf