Nope, doesn't crash here. Neither in the official version, nor in the latest test build. Try this: http://sagagames.de/stuff/mptrack.exe does it still crash?

For some reason it still crashes when I try to play it.

Does it only happen with this particular file? Can you please provide the crash dump that is generated when OpenMPT crashes? But please use the official OpenMPT 1.22.02.00 release for that.

It happens with all the XM and Midi files I have and it happens when I try to play instruments. It gives me a OpenMPT has stopped working message from Windows.

And you don't get any "OpenMPT has crashed and needs to be closed (...)" message before that?

No it just crashes and the Windows Error Reporting message comes up.

That's really weird. Are you sure it's a crash, or is it actually a hang? A hang can be identified by the OpenMPT window turning white, and when clicking on it, Windows says that the application isn't responding.
Either way, it would be useful to have a memory dump of this. To create one, open the task manager, right-click mptrack.exe after it has crashed, and click "create dump file". This should create a (rather large) memory dump of OpenMPT. Compress it using something good like 7zip (zip alone might create a much bigger file) and upload it somewhere (Dropbox or whatever is enough, but that file will certainly too big for the issue tracker's attachment feature). Note: You have specified to run Win7 x86, but in case that was a mistake and you are running a 64-Bit Windows, please tell so, because the steps to create a memory dump will be slightly different there.

I created a dump file of when OpenMPT crashes using a 32-bit (x86) version of Windows.
https://www.dropbox.com/s/497b3vhtqon4mk0/mptrack.zip

According to the dump, OpenMPT made its way into its own error reporting routine, but didn't get as far as displaying the error message I was asking for above. Still, it should have created a smaller memory dump before it crashed. That memory dump is located in "%TEMP%\OpenMPT Crash Files" (type that into Explorer's address bar and %TEMP% will automatically resolve to your temporary folder). Can you upload the DMP file(s) found in that directory as well?

This is the dump created by OpenMPT. https://www.dropbox.com/s/8jpmgecr9ixvunb/crash.zip

Alright, this is really, really weird. I am not sure at all what is going on there. So let's try a few more things.

• Does OpenMPT 1.21 do the same? You can get the old versions from http://sagamusix.de/openmpt/download/archive/openmpt/1.21/
• Does changing the sound card settings in OpenMPT to e.g. a WASAPI driver solve the problem?
• Can you upload your mptrack.ini (Help -> Show Settings Folder)?

It works perfectly in this version. It seems to work with my default sound card.
For some reason the WASAPI driver on my machine doesn't work with this.
These are my settings for this version and I used the same settings in the OpenMPT 1.22
https://www.dropbox.com/s/snjtcvfsm5ig58u/mptrackini.zip

Thanks, now I could finally reproduce it - the crash is indeed caused by your playback settings. The memory dumps pointed at completely different parts of the code, which puzzled me quite a bit.

I made a backup copy of mptrack.ini and deleted the original and that seemed to fix it as it created another file.

Yes, for the time being, you can simply disable Quad surround in the Sound Card settings. That gets rid of the issue.

Now it shouldn't crash anymore even with Quad surround enabled. http://sagagames.de/stuff/mptrack.exe

I tried the newer revision and it works perfectly even with my old settings.