Be careful with IDirectSoundBuffer.Lock

[Andru]

...which is also a normal situation considering that ASUS Xonar DS did not do anything wrong, since they do not need to check for validity of the parameters. The crash is a normal response in this case, which was at your fault for sending invalid data.

I would totally agree with this only if I had passed some invalid pointer or whatever else dangerous, but not a "wrong" size, which can be handled without no problems, this is just a zero, even not a negative value... this is almost the same as if that driver can't allocate memory(for sound buffer) and goes crash instead of returning E_OUTOFMEMORY But this thread is not about why I was so careless, just a warning about very specific problem