When connected to a remote system and that system plays audio, the remote desktop client crashes (modern ui and desktop clients), when vorbis.acm is present in C:\Windows\System32.
In my case the vorbis codec is being installed and is required by FL Studio.
I am running Windows 8.1 Pro x64. The problem goes away if I rename the file (there is also a vorbis.acm in SysWOW64, but that does not cause any problems).
Below is what shows in event viewer.
Faulting application name: wwahost.exe, version: 6.3.9600.17031, time stamp: 0x53085927
Faulting module name: vorbis.acm, version: 0.0.3.6, time stamp: 0x50a51541
Exception code: 0xc0000005
Fault offset: 0x0000000000001f4f
Faulting process id: 0x1d6c
Faulting application start time: 0x01cfc77d9b5e536a
Faulting application path: C:\Windows\system32\wwahost.exe
Faulting module path: C:\Windows\system32\vorbis.acm
Report Id: 588335b4-3371-11e4-827b-88532e998800
Faulting package full name: Microsoft.RemoteDesktop_6.3.9600.16419_neutral__8wekyb3d8bbwe
Faulting package-relative application ID: Microsoft.RemoteDesktopClient