PRESS RELEASE 17 APRIL 2002 Probatus released Probatus Spectra Linux operating system Probatus Oy, a provider of systems integration solutions, has today released the Probatus Spectra(tm) Linux operating system, suitable for both workstation and server use. Probatus Spectra(tm) Linux is the most productized Linux distribution version made in Finland. It is also the first Linux distribution version to be provided with the Probatus Spectra(tm) SDK application development environment, which supports all most common operating systems. "Spectra Linux provides a quick and easy way to transfer to using Linux. It offers an easy-to-use environment providing compatibility with other major Linux distributions and supporting a wide range of peripheral devices. Installation does not require special skills from Linux beginners, and the possibility to individually select the program modules to be installed serves the needs of experienced users," says Esa Tervo, Executive Vice President and director of technology development at Probatus. The Probatus Spectra(tm) SDK (Software Development Kit) development environment provided with Probatus Spectra Linux enables systems developers to produce localized applications for robust data processing - simultaneously for several target environments and language areas, and without major porting costs. Besides Linux, the developed applications function in most common UNIX platforms and Microsoft Windows environments. Support services based on the various Linux distributions on the market, as well as new updates, are freely available on the Internet. In addition, Probatus will provide Spectra(tm) Linux users with reasonably priced support services as well as product updates that include the latest Spectra(tm) Linux system updates and the latest Spectra(tm) SDK development environment. The operating system is provided without license fees, but the commercial use of the Spectra(tm) SDK requires a separate license. Probatus Spectra(tm) Linux is available directly from the vendor and retailers. In addition, an installation guide with two Spectra(tm) Linux installation CDs can be bought from well-stocked bookstores and the publisher (IT Press). Spectra(tm) Linux can also be downloaded from the Internet at http://linux.probatus.com. Probatus Probatus Oy provides information management solutions to companies and communities and systems integration solutions to service providers and teleoperators. With the aid of the Probatus Spectra(tm) technology, the company offers a wide range of products and solutions to support tomorrow's information management, workgroup functioning and communication services. In addition, Probatus has gained international experience in systems integration as well as in expert services and quality assurance. The company's headquarters is located in Tampere, Finland. It also has a research and development center in Turku and offices in Forssa and Helsinki. The company was established in 1993 and currently has about 100 employees. Probatus is a subsidiary of Comptel Corporation. Further information: Probatus Oy Esa Tervo, Executive Vice President, CTO Tel. +358 50 385 9860 www.probatus.com