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                       SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, DC 20549

                                   FORM 10-C

                REPORT BY ISSUER OF SECURITIES QUOTED ON NASDAQ
                          INTERDEALER QUOTATION SYSTEM
                  FILED PURSUANT TO SECTION 13 OR 15(d) OF THE
                SECURITIES EXCHANGE ACT OF 1934 AND RULE 13a-17
                              OR 15d-17 THEREUNDER

                            QUARTERDECK CORPORATION
                 (Exact name of issuer as specified in charter)

13160 Mindanao Way, Marina del Rey, California                            90292
(Address of  Principal Executive Office)                             (Zip Code)

Issuer's telephone number, including area code:                 (310) 309-3700

                   I.  CHANGE IN NUMBER OF SHARES OUTSTANDING

Indicate any change (increase or decrease) of five percent or more in the
number of shares outstanding:

                                              
1.  Title of security:                           Common Stock, $.001 par value
2.  Number of shares outstanding before the change:                 32,623,840
3.  Number of shares outstanding after the change:                  36,123,839
4.  Effective date of change:                                    July 18, 1996
5.  Methods of change:  Specify method (such as merger,                 Merger
acquisition, exchange, distribution, stock split, reverse split,
acquisition of stock for treasury, etc.):



Give brief description of transaction:

                 On July 18, 1996, Quarterdeck Corporation, a Delaware
                 corporation ("Quarterdeck"), acquired all of the outstanding
                 stock of Vertisoft Systems, Inc., a California corporation
                 ("Vertisoft"), through the merger of a wholly-owned subsidiary
                 of Quarterdeck with and into Vertisoft.  In connection with
                 acquisition, the outstanding capital stock of Vertisoft was
                 converted into 3,500,000 shares of Quarterdeck common stock.

                          II. CHANGE IN NAME OF ISSUER

1.  Name prior to change  _____________________________________________________

2.  Name after the change _____________________________________________________

3.  Effective date of charter amendment changing name__________________________

4.  Date of shareholder approval of change, if required________________________



Date:    July 26, 1996
                     
                                   
                                    /s/    BRADLEY D. SCHWARTZ
                                    __________________________________

                                           Bradley D. Schwartz
                                    Secretary, Senior Vice President
                                            and General Counsel