We do not have a download file for the latest version (4.1), but you can try downloading it from the developer's site
Download version 2.0.7 from Software Informer
Scanned by 76 antivirus programs on Oct 15, 2023.
The file is clean, see the report.
Version: 2.0.7 (x86)
Date update: Apr 16, 2012
File name: classmaster20.msi
Size: 1.3 MB