I need to do some test with DUF, so I went to https://www.rdctools.com/downloads/ and saw that there was a new installer from June 18 2019.

I has downloaded it but I am not succesfull installing it, at some step it throws this error and revert the installation: A file that is required cannot be installed because the cabinet file xxxxxx\InstallDUF21.cab has an invalid digital signature. This may indicate that the cabinet file is corrupt.