EXHIBIT A JOINT FILING AGREEMENT In accordance with Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended, the persons named below each hereby agrees that the Schedule 13G filed herewith and any amendments thereto relating to the...

                                     EXHIBIT A

                             JOINT FILING AGREEMENT


     In accordance with Rule 13d-1(k) under the Securities Exchange Act of
1934, as amended, the persons named below each hereby agrees that the Schedule
13G filed herewith and any amendments thereto relating to the acquisition of
shares of the Common Stock of CASCO INTERNATIONAL, INC. is filed jointly on
behalf of each such person.

Dated: April 13, 2000


                                   /s/ Xxxxxx X. Xxxxxxxx
                                 -----------------------------
                                   Xxxxxx X. Xxxxxxxx

                                   /s/ Xxxxxx X. Xxxxxxxx
                                 -----------------------------
                                   Xxxxxx X. Xxxxxxxx