https://bugs.winehq.org/show_bug.cgi?id=52109
--- Comment #2 from Scott shagooserver@gmail.com --- Looks like it's available here (version 2.6): https://dtshdencodersuite.software.informer.com/2.6/
Yes, it is a regression. The last fix to enable this program to work was wine 6.19 or 6.20. and it worked in those versions and 6.21 as well.