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Building System Optimizer: all versions and old releases

Quickly evaluate energy performance.

1 versions of Building System Optimizer are listed here, from April 12, 2025 to the current 1.7. Each one links to the publisher’s own installer files.

2025: 1 1 25
VersionDateSizeFiles
1.7Latest April 12, 2025 159.1 MB 32-bit EXE (Inno Setup) 159.1 MB
Release notes
Building System Optimizer v1.7 contains the following changes:
- Implemented a new project management system. Each project is stored in a single file that can be placed anywhere and moved or renamed at any time. The program remembers the location of project files and displays them on a ‘most recently used projects’ list.
- Implemented a new software security scheme using a license key. The license key is issued when you first license the software and expires when the license expires. A new key is provided each time you renew the license to extend operation for another year. Note that the license key is associated with your license, not a particular version of the software.
- Implemented a new installation approach. Version 1.7 installs as a standalone software program. Installation of Carrier X Builder Framework is no longer required.

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