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• If you have a previous version of DesignBuilder installed you must uninstall from Control Panel -> Add or remove programs before running this download to install the new version.
• DesignBuilder is designed for Windows XP, and Windows 2000 - see hardware requirements.
• View details of the latest changes and product revision history.
• If you are evaluating the software, after 30 days you will need to purchase a license to continue to use it.

Upgrading 

If you already have a perpetual version 1 license or an annual license then this is a free upgrade.