Issue installing free version of SFTP Server

Hi Solarwinds,
I downloaded the free SFTP installer today. The package was delivered as a zip file with one file SftpServerInstaller.msi. The MSI file fails to install on my PC running Windows 10 with error message "This installation package could not be opened. Contact the application vendor to verify that this is a valid Windows Installer package". I tried on a few different PCs but to no avail. I have administrator rights on all the machines. I can install other software without issue.

Could you please check if the download package contains the right installer file? Thank you.

Best regards,

Viet