Crash in DosBox

I installed VirtualMidiSynth with the Weeds GM3 into an XP virtual machine and it sounds great! Unfortunately, when I try to use it on that install with DosBox (to run System Shock Portable), it crashes DosBox after being in the game for about 10 seconds. I tried another soundfont but same result. It would be great to be able to use this with DosBox.

Sorry for the late reply--I only just now saw the message in my spam filter. I had already disabled the realtime option, and I think I tried toggling the preload as well. However, I just tried it again and it's working. The main thing that's different is that I'm away from home with the laptop and for the first time not using it with the docking station (and second screen). I'm suspicious there may be some interaction there. Thanks for responding!

Well, after trying again while docked it still worked, but then I realized that VirtualMIDISynth was not being loaded at all! I had set the default MIDI mapper using the VirtualMIDISynth Configurator, but it apparently ignored it. I set it again using the Windows Audio devices control panel and it still didn't stay, but then I did it one more time and it stayed. Weird. Anyway, it's still crashing about 5 seconds into gameplay. (It will happily sit on the main menu using the MIDI indefinitely, there's just something about the gameplay that causes it to crash). I tried it without either realtime or preload. Anything else I could try (or further diagnostics to help track this down)?

Well, that's the thread where I originally learned about VirtualMIDISynth. In my searching, I haven't found anyone else that's using VirtualMIDISynth with DosBox. I did try BASSMIDI, but it's performance was awful and it was also frequently scratchy (when it did make a sound). I tried a bunch of different settings in the DOSBox configuration, like trying to match the sample rates and changing the MPU-401 configuration from "intelligent" to "uart", but nothing fixed the crash with VirtualMIDISynth. Looks like I may be stuck with "Microsoft GS Wavetable SW Synth" for now. Thanks for your help, though.

It's really appreciated, thank you very much.