Ahhh - now I understand. Yes, that likely explains it. Thank you!

I totally get that, but was surprised when it persisted yesterday, despite the virtual machine being rebooted each time after it crashed. Anyway, all is good now, thanks again for the responses!

Well, this morning I can no longer reproduce it, last night was every time. I should also add that there was other weird stuff going on last night, where seemingly random crashes were occurring frequently, even just with simple Finder operations. Not sure what I might have changed since then (don't ...

I'm running Sheepshaver v2.5, Aug 10, 2020 edition on a Mac OS X 10.15.6 Catalina host. My Sheepshaver Mac OS version is 9.0. I have 512 MB RAM allocated in Sheepshaver's prefs. Other apps seem to run normally, but every time I start up SimpleText, it crashes the Mac OS as well as Sheepshaver. It's ...

Thanks for the response - my hope is to get sysex strings out of an application that controlled a hardware MIDI device. I don't plan to use the app to actually control the device, I just want to be able to route the application's output (via a software-based IAC port) to a MIDI monitor app, which in...

Thanks, that may be helpful...

Thanks for the reply - yes, that's the problem. I've not followed recent Sheepshaver development closely -- is there a way to reroute serial port connections (e.g. modem and/or printer) to USB ones instead? But even lacking this, it seems that the IAC virtual MIDI ports don't function properly with ...

Reviving old thread - I too am eager to find a way to get OMS working in Sheepshaver. I don't need to connect to the "outside world", just need OMS working internally, so applications that are reliant on it can start up...

Anyone with success to report?? Thanks....