Cadcorp SIS unknown could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. We recommend checking the downloaded files with any free antivirus. This program is an intellectual property of Cadcorp Ltd.
From the developer:
Cadcorp SIS is specialising in the development of geographic information systems (GIS) and web mapping software. The SIS product family includes applications for desktop and web environments together with comprehensive tools for GIS developers and systems integrators.
You may want to check out more software, such as Soundcraft Virtual Si, Si Offline Performer or Martik SIS Signer, which might be related to Cadcorp SIS.
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