Configuration for a specific speech-to-text service. Defines the 64-bit DLL to use for accessing this service. If the DLL is neither in the same directory as the executable file, nor in any directory listed in the PATH environment variable, this entry must contain the fully qualified path of the DLL. Otherwise, the file name and extension suffice.
It is an error not to define this parameter, or to define it as an empty string.
Possible values: file name
Default value: (empty)