Stream.Seek(0, soFromEnd); Pour utiliser la méthode Write, il faut disposer d'un tampon mémoire. Exemple: <CODE>var Stream: TFileStream; Buffer: array [0..255] of byte; begin Stream := TFileStream.create('NomDuFichier', fmOpenWrite); FillChar(Buffer, SizeOf(Buffer), 0); Stream.Write(Buffer, SizeOf(Buffer));