Listed on sharewareonsale.com as . . .(32-bit and 64-bit).
BUT, I think it may be 64 bit only.
From the bottom of the proDAD webpage https://www.prodad-ango.com/home-51527,l-en.html:
system requirements
Windows 7, 8, 8.1 and 10
Windows 64bit only
4 GB main memory and 1 GB hard disk space
internet connection