The command line version espeak.exe does not list SAPI5 voices such as "Microsoft Sam". Could this be added ?
Logged In: YES
The command-line version eSpeak doesn't use the SAPI5 interface.
Therefore it can be used if SAPI5 is not available.
If you want a program that can list and use all SAPI5 voices, then that's something separate, nothing to do with eSpeak. It could access the eSpeak voices, together with others, over the standard SAPI5 interface.