We do not have a download file for the latest version (9.2.0.240), but you can try downloading it from the developer's site
Download version 5.5.0.486 from Software Informer
Scanned by 75 antivirus programs on Jan 6, 2025.
The file is clean, see the report.
Version: 5.5.0.486 (x86/x64)
Date update: Jan 17, 2018
File name: helpndoc-setup-5.5.0.486.exe
Size: 22.7 MB