[WiX-users] DifxApp - Cannot create a stable subkey under a volatile parent key

[Rob H. <ro...@sn...>]

I'm seeing an occasional issue using DifxApp, which a log reports as:

DIFXAPP: INFO:   ENTER UpdateDriverForPlugAndPlayDevices...
DIFXAPP: ERROR:  RETURN UpdateDriverForPlugAndPlayDevices. (Error code 0x3FD: Cannot create a stable 
subkey under a volatile parent key.)
DIFXAPP: ERROR:  Installation failed. (Error code 0x3FD: Cannot create a stable subkey under a 
volatile parent key.)
DIFXAPP: ERROR:  PnP Install failed. (Error code 0x3FD: Cannot create a stable subkey under a 
volatile parent key.)

Running the installer again seems to be fine, so it's not a permanent problem.  Has anyone seen this 
before?  The solutions I found online say to delete the registry key in question, which I don't 
really think is safe in this situation.

Thanks,
Rob