Thanx to ZinkT for this one!
I just spotted this but I'm at work at the moment so I thought you might like to post about it as I don't have time. https://www.ikmultimedia.com/syntronik2gb/
Cheers
Syner-V has a different install issue than GS-V issue. I did some research this morning and here are my findings.
The GS-V issue is that one of the zip files is not copied at all by the install process: SYN2_GS-V_Part_4.zip
For Syner-V all of the zip files get installed but two of the files are malformed and has an extra level of folder which makes the install copy the wrong thing. I am kinda surprised the install process doesn't give any error message on this though. The file SYN2_Syn