i try find a solution get an avis length... ...i found this in vb script... can i convert the "get length" part in autoit comands?.. VB Code Private Declare Function AVIFileOpen Lib "avifil32" _ Alias "AVIFileOpenA" ( _ ppfile As Long, _ ByVal szFile As String, _ ByVal mode As Long, _ pclsidHandler As Any) As Long Private Declare Function AVIFileRelease Lib "avifil32" ( _ ByVal pfile As Long) As Long Private Declare Function AVIFileInfo Lib "avifil32" _ Alias "AVIFileInfoA"