VirtualMidiSynth in VirtualBox

Posts: 25
Joined: May 17, 2017 - 14:12
VirtualMidiSynth in VirtualBox

Hi there,

Running Win98Se through VirtualBox where MidiOx reports the midi port for output as in-use. "MM337: the specified midi device is already in use". In this case it's Windows Direct Sound on the host channelled through SoundBlaster 16 in guest seen as a "MIDI for Creative Stereo Music Synthesier". The wav sounds work.

Exiting VirtualMidiSynth doesn't appear to clear the issue- although haven't tried an uninstall/restart to verify.

Successfully updated the SE, but attempts to update the SB drivers didn't work. Perhaps a soundcard is better than just the on-board chip in any case. :)

Thanks for reading.

Posts: 25
Joined: May 17, 2017 - 14:12
Re: VirtualMidiSynth in VirtualBox

If it's of any help at all here's a snippet from the VirtualBox logs:

00:00:12.299808 supR3HardenedErrorV: supR3HardenedMonitor_LdrLoadDll: relative name not permitted: VirtualMIDISynth\VirtualMIDISynth.dll
00:00:12.455847 supR3HardenedErrorV: supR3HardenedScreenImage/LdrLoadDll: rc=VERR_LDRVI_NOT_SIGNED fImage=1 fProtect=0x0 fAccess=0x0 \Device\HarddiskVolume2\Windows\System32\VirtualMIDISynth.dll: Not signed.
00:00:12.456158 supR3HardenedErrorV: supR3HardenedMonitor_LdrLoadDll: rejecting 'C:\WINDOWS\System32\VirtualMIDISynth.dll': rcNt=0xc0000190
00:00:12.456342 supR3HardenedErrorV: supR3HardenedMonitor_LdrLoadDll: relative name not permitted: MIDIMapper\MIDIMapper.dll
00:00:12.769667 DSound: Found 3 host playback devices
00:00:12.769696 DSound: Found 0 host capturing devices
00:00:12.771083 Audio: Host audio backend supports 3 output streams and 0 input streams at once
00:00:12.771148 Audio: Initializing VRDE driver
00:00:12.771178 Audio: Host audio backend supports 1 output streams and 2 input streams at once

It sure doesn't look all that very friendly. :p

Thanks again.

Posts: 1125
Joined: March 25, 2012 - 01:19
Re: VirtualMidiSynth in VirtualBox

This week I should be able to get back working on VMS.
Will have a look, thanks for the detailed report ;)

Posts: 25
Joined: May 17, 2017 - 14:12
Re: VirtualMidiSynth in VirtualBox

Thanks. :)

Well there are revelations: After uninstalling VMSynth and installing an SB-Z card, there is still no midi in the Win98 Virtual Box! The wav files play beautifully. Going to hit the Creative forums to determine which of the drivers to use0 if any. Obviously some kind of OS issue- the AC97 WDM returns a 5009 on install- tried others. Definitely not a VirtualMidiSynth issue, sorry.

Posts: 1125
Joined: March 25, 2012 - 01:19
Re: VirtualMidiSynth in VirtualBox
lmstearn wrote:
there is still no midi in the Win98 Virtual Box!

I love VirtualBox but I had lot of issues running Win98 within it (not supported, no extensions, no official video drivers and such).
If you need to virtualize Win98 then the free VMware should be a better choice; you could try the free VMware Player + a free config editor to generate your VM config file.

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