The Belarc Advisor is running only on Windows operating system. The commercial products provided by the developers of Belarc Advisor are also compatible with other operating systems as well.
This is extracted from their official website: "Runs on Windows 10, 2016, 8.1, 2012 R2, 8, 2012, 7, 2008 R2, Vista, 2008, 2003 SP2, XP SP3. Both 32-bit and 64-bit Windows are supported. Our commercial products also run on all other versions of Windows and on the Macintosh OS X, Linux, and Solaris operating systems."
You can download the Windows version from the following link: http://www.belarc.com/en/products_belarc_advisor