MD5 was broken. By Googling I found: https://raylin.wordpress.com/downloads/md5-sha-1-checksum-utility/

I generated some SHA-256 checksums under Linux.
Code:
85696be2b001bdb8e9e6bef4e033b52f2825e947d3e04b754519a919d8596623  Zorro_setup.exe
c565fb2257c7f665b90efae464bfebbf893c93c57d97f0baf4b914e3c6c920e7  ZorroBeta.zip