UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                                   FORM 12b-25
             [ ] Form 10-K [ ] Form 20-F [ ] Form 11-K [X] Form 10-Q

For Period Ended March 31, 2003        SEC FILE NUMBER 000-25523
                                       CUSIP NUMBER 74154U 10 2

[ ] Transition Report on Form 10-K [ ] Transition Report on Form 20-F [ ]
Transition Report on Form 11-K [ ] Transition Report on Form 10-Q [ ] Transition
Report on Form N-SAR For Period Ended:


Nothing in this form shall be construed to imply that the Commission has
verified any information contained herein.

 If the notification relates to a portion of the filing checked above,  identify
the Item(s) to which the notification relates: Entire Form 10-QSB

Part I - Registrant Information

         Full Name of Registrant          Primary Business Systems, Inc.
                                          ------------------------------

         Former Name if Applicable        Sharecom, Inc.
                                          --------------

         Address of Principal Executive Office: 433 Kitty Hawk Drive, Suite 226
                                                       Universal City, TX 78148

Part II--RULES 12b-25 (b) AND (c)

         If the subject report could not be filed without unreasonable effort or
expense and the registrant seeks relief pursuant to Rule 12b-25(b) the following
should be completed. (Check box if appropriate)

[X]      (a)      The reasons described in reasonable detail in Part III of this
                  form could not be eliminated
                  without unreasonable effort or expense;

[X]               (b) The subject annual report, semi-annual report, transition
                  report on Form 10-K, Form 2-F, 11-F, or From N-SAR, or portion
                  thereof will be filed on or before the fifteenth calendar day
                  following the prescribed due date; or the subject quarterly
                  report or transition report on Form 10-Q, or portion thereof
                  will be filed on or before the fifth calendar day following
                  the prescribed due date; and

         (c)      The accountant's statement or other exhibit required by Rule
                  12b-25(c) has been attached if
                  applicable.






Part III - Narrative

         State below in reasonable detail the reasons why form 10-K, 11-K, 20-F,
10-Q or N-SAR or portion thereof could not be filed within the prescribed time
period.

         Changes in the management of the Company and in the staff that maintain
and report the finances of the Company have delayed the creation and approval of
the quarterly financial statements of the Company for the period ended March 31,
2003.Problems in bringing together financial records necessary to complete the
financial statements and allow for their review by the auditor have caused
delays in getting the report ready for filing in a timely manner. As a result of
these delays, the Company's Form 10-QSB for the period ended March 31, 2003
could not be prepared for timely filing without undue and unreasonable expense.

Part IV - Other Information

(1)      Name and telephone number of person to contact in regard to this
notification.

  Patrick D. Matthews                President            (210) 658-4675
  ------------------------------------------------------------------------------
  (Name)                             (Title)              (Telephone Number)

         (2)      Have all other periodic reports required under section 13 or
                  15(d) of the Securities Exchange Act of 1934 or section 30 of
                  the Investment Company Act of 1940 during the 12 months or for
                  such shorter period that the registrant was required to file
                  such report(s) been filed? If the answer if no, identify
                  report(s).
                                 (X ) Yes ( ) No

         (3)      Is it anticipated that any significant change in results of
                  operations from the corresponding period for the last fiscal
                  year will be reflected by the earnings statements to be
                  included in the subject report or portion thereof?
                                 ( ) Yes (X) No

                  If so, attach an explanation of the anticipated change, both
                  narrative and quantitatively, and, if appropriate, state the
                  reasons why a reasonable estimate of the results cannot be
                  made - Corporate offices and management changes.



                                          Primary Business Systems, Inc.
- --------------------------------------------------------------------------------
                                   (Name of Registrant as specified in Charter)

In accordance with the requirements of the Exchange Act, the registrant caused
this report to be signed on its behalf by the undersigned thereunto duly
authorized.


Date: May 15, 2003                          By:    /s/ Patrick Matthews
      ---------------------                    --------------------------------
                            Name: Patrick D. Matthews
                                            Title:    President