[Bug 29817] lmms crash at startup

http://bugs.winehq.org/show_bug.cgi?id=29817

--- Comment #3 from Andrew Eikum  2012-02-07 09:43:22 CST ---
The crash is caused by a bug in PortAudio's error path for its post-Vista audio
backend. We trigger the error path because we're missing ksuser.dll. From the
PortAudio source:

PaError PaWinWdm_Initialize(...)
{
    PaError result = paNoError;

if(DllKsUser == NULL)
    {
        DllKsUser = LoadLibrary(TEXT("ksuser.dll"));
        if(DllKsUser == NULL)
            goto error;
    }

...

error:
    return result;
}

Notice that 'result' returns paNoError even though initialization failed. Other
error paths in that function do set 'result' to some error code.

I didn't investigate further, but it looks like Bad Stuff happens as a result.

So the problem here is we need ksuser.dll.