EXHIBIT 22.1

                             BMC SOFTWARE, INC.
                               SUBSIDIARIES


                                        JURISDICTION OF
      NAME                               INCORPORATION
      ----                              ----------------
BMC Software (AUST.) Pty. Ltd              AUSTRALIA

BMC Software GmbH                          AUSTRIA

BMC Software Belgium NV/SA                 BELGIUM

BMC Software DO Brasil                     BRAZIL

BMC Software A/S                           DENMARK

BMC Software France                        FRANCE

BMC Software GmbH                          GERMANY

BMC Software Srl                           ITALY

BMC Software Japan Ltd.                    JAPAN

BMC Software, Limited                      UNITED KINGDOM

BMC Software PTE Ltd (ASIA)                SINGAPORE

BMC Software (Spain)                       SPAIN

BMC Software FSC, Inc.                     U.S.A.

BMC Real Properties, Inc.                  U.S.A.

BMC Software Services, Inc.                U.S.A.

BMC Software Education, Inc.               U.S.A.

BMC Software Distribution, Inc.            U.S.A.

BMC Software Texas, Inc.                   U.S.A.

BMC Software Texas, L.P.                   U.S.A.

BMC Software Distributions B.V.            NETHERLANDS

BMC Software B.V.                          NETHERLANDS




BMC Software Investment B.V.               NETHERLANDS

BMC Software Cayman, LDC                   GRAND CAYMAN ISLANDS

Patrol Software, Inc.                      U.S.A.

Patrol Texas, Inc.                         U.S.A.

Patrol Software Pty. Ltd.                  AUSTRALIA