The 9.10.0002 version of Telelogic DOORS is available as a free download on our website. Doors.exe, Icon4D3E9776.exe, Icon8C6BD7D1.exe or IconEB8E5665.exe are the frequent file names to indicate this program's installer. This free software is an intellectual property of IBM. The most popular versions among Telelogic DOORS users are 9.1, 9.0 and 8.3. The software is included in Development Tools. Our built-in antivirus checked this download and rated it as virus free.
From the developer:
Telelogic DOORS , the worlds leading requirements management tool, is a multi-platform, enterprise-wide system designed to capture, link, trace, analyze and manage changes to information to ensure a projects compliance to specified requirements and standards.
You may want to check out more software, such as MDG Link for DOORS, Supa Door Designer or Door Control, which might be related to Telelogic DOORS.