SpamCatcher 4 Improves Anti-Phishing, Spam Protection Anti-Spam Software Protects Against Email Phishing Scams, Blocks Unwanted E-mail, and Improves Outlook Express Integration WATSONVILLE, Calif., Dec. 14 /PRNewswire-FirstCall/ -- Allume Systems, Inc., an IMSI company (OTC:IMSI) (BULLETIN BOARD: IMSI) , today announced the release of SpamCatcher(TM) 4.0, an award-winning anti-spam and anti-phishing software. SpamCatcher 4.0 combats phishing scams using its unique patent-pending fingerprinting technology which, combined with improvements in its anti-spyware engine, allows users to take greater control of what they receive in their Inbox. SpamCatcher 4.0 includes better integration with Outlook Express and has an Improved user interface -- making it easier to use and more robust than ever. SpamCatcher defends a user's Inbox by comparing every email against a database of millions of emails and uses a powerful combination of heuristics, Bayesian analysis, Fuzzy Logic, Source analysis and Artificial Intelligence to stop unwanted and unsolicited emails and phishing scams. By taking advantage of the SpamCatcher network users increase their protection from the latest email scams and spam. SpamCatcher provides additional protection by letting users create their own "black list" allowing them to easily block email from people and domains or add them to a "white list" of approved email addresses or domains. New to SpamCatcher 4.0: -- Improved anti-phishing capability -- Integrated Outlook Express support -- An easier to use interface -- Less false positives -- improved filtering of wanted and unwanted emails for appropriate distribution Other Benefits of Using SpamCatcher: -- Support for popular mail accounts: Outlook, Outlook Express, MSN Hotmail and Yahoo (paid versions) -- Allows multiple identity/folder support -- Supports any POP client -- Uses five anti-spam techniques * SpamTricks -- Checks to see if the email is specially formatted or design to bypass anti-spam rules * SpamReject -- Looks at the source of the email and recognizes known spam broadcasters * SpamContent -- Determines if the email contains promotional, questionable, or offensive content * SpamBulk -- Checks to see how the email was sent; whether it was part of a mass mailing or sent on its own * Fingerprint Technology -- Unique patent-pending Fingerprinting technology for optimal spam and phishing detection. Every email is Fingerprinted and checked to see if it has already been convicted as spam or a phishing scam * Collaborative filtering provides real-time network updates and protection * Ability to save or transfer black and white lists Pricing, Availability and Requirements SpamCatcher is available direct from Allume, retail stores, catalog, and online resellers at an SRP of $29.99 and includes a 1-year subscription for spam profile updates. Allume is offering existing users an upgrade to version 4.0 for $14.99. A free demo of SpamCatcher 4 is available at: http://www.allume.com/win/spamcatcher/ . SpamCatcher requires Windows 95, 98, 2000, NT, ME, or XP, and 15 MB of free hard disk space. Allume Systems, Inc.: Everyday Solutions(TM) Founded in 1988, Allume Systems, Inc., an IMSI company, develops and publishes award-winning software solutions for Windows and Macintosh. Allume's leading brands are StuffIt(R), Internet Cleanup(TM) and Spring Cleaning(R). Formerly known as Aladdin Systems, Allume Systems enables people and businesses to communicate and manage their ideas and information. Allume's software offers a range of solutions, empowering users in the areas of information access, removal, recovery, security, and Internet distribution. Allume Systems is located at 245 Westridge Drive, Watsonville, CA 95076, USA; telephone: 831-761-6200; fax: 831-761-6206. Internet: http://www.allume.com/ . About IMSI Founded in 1982, IMSI's flagship product TurboCAD(R) and DesignCAD(TM)make it a leader in the precision design market. The company's online properties focus on the sale of content and services to the architectural, engineering and construction market through its stock house plans site at Houseplans.com http://www.houseplans.com/ and http://www.homeplanfinder.com/ and the online CAD symbol site, http://www.cadsymbols.com/ . IMSI on the Net: http://www.imsisoft.com/ . Safe Harbor Statement This announcement contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, Section 21E of the Securities Exchange Act of 1934, and within the meaning of the Private Securities Litigation Reform Act of 1995. Actual results could differ materially from those projected in the forward-looking statements as a result of various factors including the ability of the company to successfully commercialize its new technologies as well as risk factors set forth under "Factors Affecting Future Operating Results" in the company's annual report on Form 10-KSB for the year ended June 30, 2004, and such other risks detailed from time to time in the company's reports filed with the SEC. The company undertakes no obligation to publicly release the result of any revisions to these forward-looking statements, which may be made to reflect events or circumstances after the date hereof or to reflect the occurrence of unanticipated events. NOTE: StuffIt, DropStuff, Expander, and the Allume logo are trademarks or registered trademarks of Allume Systems, Inc. All other product names are registered trademarks or trademarks of their respective owners. DATASOURCE: Allume Systems, Inc.: CONTACT: Jennifer Watson of Allume Systems, Inc., +1-831-768-3630, or Web site: http://www.imsisoft.com/ Web site: http://www.allume.com/

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