Hello, any idea why Surge XT vst3 drop the message "File is not a valid plugin" into the plugin manager ? ( https://surge-synthesizer.github.io/ )
OpenMPT does not support VST3 plugins, and probably isn't going to anytime soon due to Steinberg's unfortunate decision to release the VST SDK under either a proprietary or GPL license. However, the upcoming OpenMPT 1.32 will support VST shell plugins, which means that you can use polac's vst3shell (https://www.kvraudio.com/forum/viewtopic.php?t=565924) plugin in OpenMPT.
If you would like to give it a try at this point in time, you can download OpenMPT 1.32 test builds from https://builds.openmpt.org/builds/ - Just load vst3shell and vsti3shell into OpenMPT and they will automatically add all installed VST3 plugins to OpenMPT's plugin list.
Alternatively, here's the last Surge version that was distributed as VST2: https://github.com/surge-synthesizer/releases/releases/tag/1.6.6
It's possible that later versions that were only distributed as VST3 could still load in OpenMPT, because some older VST3 plugins contain a built-in VST2 wrapper. Might be worth a try to see if e.g. v1.9 still loads in OpenMPT.
thank you for your answer, well, let's wait v33/25 or v1+1/(3+1/8) 8)