For Immediate Release :

Diehl Graphsoft Acquired by Nemetschek AG for $30 Million
Deal establishes US presence for European software giant

    Columbia, MD, February 18, 2000 ­ Representatives of computer aided design (CAD) software
    developer, Diehl Graphsoft, Inc. (Nasdaq DIEG), today announced that it has been acquired by
    IT/AEC software development firm, Nemetschek AG, for $9.50 per share in cash in a deal valued at
    approximately $30 Million. Under terms of the agreement, Diehl Graphsoft will operate as a
    wholly-owned subsidiary of the publicly held, Munich, Germany based firm.

    The move positions Diehl Graphsoft as Nemetschek AGís sole US subsidiary, joining the
    Nemetschekís network of more than 40 branches and subsidiaries throughout Europe, including:
    Germany, Austria, Switzerland, Italy, France, Spain, Bulgaria, Croatia, Poland, Russia, Slovak
    Republic, Hungary, and Czech Republic. In keeping with its stated objectives of superior earnings
    growth and rapid expansion into international markets, Nemetschek AG integrated or acquired seven
    enterprises before its initial public offering (IPO) in March 1999, and has acquired eight additional
    enterprises since that time.

    "We have a very clear acquisition strategy, which is based on two principles. We only acquire very
    successful companies which have proved to be the best players in their segment of the market,î
    explained Nemetschek Chairman, Prof. Georg Nemetschek. ìWe integrate their first-rate products into
    our existing product portfolio, thus creating a unique range of products on the market. At the same time
    the new associate and subsidiary companies contribute with their sales and earnings,î he added. Diehl
    Graphsoft officials say they plan to utilize their existing distribution channels to market some
    Nemetschek products, although Nemetschekís high-end CAD offering, ALLPLAN, and Diehl
    Graphsoftís mid-range CAD product, VectorWorks, will not be consolidated and will continue to be
    marketed through separate channels.

    Diehl Graphsoft founder and CEO, Richard Diehl, says the most immediate impact of the merger will
    be the availability of Nemetschek AG products via Diehl Graphsoftís international distribution
    channels. ìThis acquisition allows both firms to maximize the synergies each brings to the computer
    aided design and systems integration markets. We will all benefit from sharing our technologies and
    advancing the bar via new product development across several target markets,î offered Diehl. ìWe are
    very pleased with this outcome and are excited about the promise this merger holds,î he added.

    Diehl Graphsoftís consistently strong sales and its consistent advances in CAD technology make it a
    valuable asset in our strategy for expanding our international reach,î he said. ì This acquisition allows
    us to immediately establish a strong presence in the US AEC CAD software market and further expand
    our international market position,î Prof. Nemetschek concluded.

    Diehl Graphsoft representatives report that the acquisition will not affect its announced strategy of
    expanding its product line and developing new, market specific add-ons. The first new product
    developed under this strategy, VectorWorks ARCHITECT, was released at the MacWorld Expo in
    January. Early sales figures indicate that the product has been very well received by the architectural
    CAD market, says Diehl.

    Only CAD products by industry giants AutoDesk and Bentley Systems currently offer a comparable
    level of object-based technology merged with established, general-purpose CAD.

    Nemetschek AG, founded as a consulting firm in 1963 by civil engineer, Professor Georg
    Nemetschek, is one of the largest architectural software vendors in the world, with annual revenues
    exceeding US $120 million (245 million DEM). Nemetschek is one of the worldís largest full-solution
    vendors of information and communications technology for the design, construction and management
    of buildings and real estate. Its flagship product, ALLPLAN, is an AEC CAD market leader in
    Germany and Europe.

    Headquartered in Columbia, Maryland, Diehl Graphsoft has been publicly traded since 1995, is a
    leading international developer of CAD software and has designed CAD software for the personal
    computer since 1985. Its flagship product, MiniCAD VectorWorks, is the best-selling CAD software
    on the Macintosh platform and has a growing presence in the Windows market. It is the most popular
    CAD software in Japan according to independent nationwide surveys conducted by
    Kenchiku-Chishiki, a leading architecture publication there. VectorWorks is used by design
    professionals in more than 80 countries and is marketed in more than 14 languages.

    Another major feature of VectorWorks is its VectorScript programming language which allows users --
    even those with no formal programming experience -- to program VectorWorks to automate routine
    tasks or create customize tools and objects to meet their individual design needs. The VectorScript
    programming language is a complete, self-contained programming environment built into
    VectorWorks. The company reports that much of its new product development will be based on this
    programming environment and that it plans to promote the VectorScript Development System to
    third-party developers through its new VectorWorks Developerís Program.

    The Nemetschek group's software solutions are used in more than 70,000 companies, in 53 countries
    and are marketed in 13 languages.

    In connection with the Private Securities Litigation Reform Act of 1995(the "Litigation Reform Act"),
    the Company is hereby disclosing certain cautionary information to be used in connection with written
    materials (including this press release) and oral statements made by or on behalf of its employees and
    representatives that may contain "forward looking statements" within the meaning of the Litigation
    Reform Act. Such statements consist of any statement other than a recitation of historical fact and can
    be identified by the use of forward looking terminology such as "may," "expect," "anticipate,"
    "estimate" or "continue" or the negative thereof or other variations thereon or comparable terminology.
    The listener or reader is cautioned that all forward looking statements are necessarily speculative and
    there are numerous risks and uncertainties that could cause actual events or results to differ materially
    from those referred to in such forward looking statements including those risks reported in the
    Company's Annual Report on Form 10KSB for the fiscal year ended May 31, 1999 and in other
    reports, documents and statements distributed by the Company. The reader or listener is cautioned that
    the Company does not have a policy of updating or revising forward looking statements and thus he or
    she should not assume that silence by management over time means that actual events are bearing out as
    estimated in such forward looking statements.