browser.systemErrorPrompt
System error prompt to play when errors occur at the platform level (or when errors are not handled by the application).
The default is system_error.wav, located in %NSSSVRSDK%\master\vbs_basepath\lang\en-US\prompts\. %NSSSVRSDK% is the location of the Nuance Speech Server.
If the prompt fails to load, the TTS version is played instead.
See Step 5: Localize the default system prompts for information on localizing this prompt.