I havent done a hyperspin build in decades and got a new mini PC for my dedicated cabinet, but funny enough had everything booting with the DLL on windows 11. Then overnight my PC shuts off and reboots and I google a bit and remove other stuff I installed. Come to find out this system update kills it for sure. After uninstalling the version mentioned in this thread things worked fine.
Why cant the authors of Hyperspin just open source it at this point now that its been. There are so many systems built with it who publish complete builds and its been 6 years since 1.5.1 release? Someone should just decompile it like they do with Mario 64 and hard fork it.