[oscarnoe]

Código Delphi [-]
procedure TForm1.Button1Click(Sender: TObject);
var
  blob: TBlobStream;
begin
  blob := yourDataset.CreateBlobStream(yourDataset.FieldByName('YOUR_BLOB'), bmRead);
  try
    blob.Seek(0, soFromBeginning);

    with TFileStream.Create('c:\your_name.doc', fmCreate) do
      try
        CopyFrom(blob, blob.Size)
      finally
        Free
      end;
  finally
    blob.Free
  end;
end;