Exhibit 99
                                                 Peritus Software Services, Inc.
                                                 For Immediate Release

     PERITUS SOFTWARE SERVICES, INC. DELISTED FROM THE NASDAQ STOCK MARKET

BILLERICA, MA.  February 3, 1999  Peritus Software Services, Inc. (NASDAQ:
PTUSE), announced that it was notified at 4:30 P.M. today by The Nasdaq Stock
Market, Inc. that the Nasdaq Qualifications Listing Panel determined to delist
the Company's securities from the Nasdaq Stock Market effective with the close
of business today.  According to the letter received by the Company, the Panel
determined to apply additional and more stringent listing criteria in light of
the Company's history of significant losses.

The securities of the Company may immediately be eligible to trade on the OTC
Bulletin Board.


About Peritus

Founded in 1991, Peritus Software Services, Inc. is a provider of software
maintenance outsourcing services.  The Peritus Software Asset Maintenance (SAM)
offerings enable organizations to transform the maintenance process into an
efficient, cost-effective discipline that boosts productivity and performance.
SAM offerings include customized services for software providers, information
systems organizations, and Year 2000 renovations.  Peritus is headquartered in
Billerica, MA.. For more information, see the Peritus web site at
http://www.peritus.com.


Contact:   John Giordano
      Chief Financial Officer
      Peritus Software Services, Inc.
      978-670-0800
      Fax: 978-670-2060
      Internet: jgiordano@peritus.com
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Peritus is a registered trademark and Software Asset Maintenance is a service
mark of Peritus Software Services, Inc.