Bizhawk Vanguard is a Vanguard implementation over the Bizhawk Emulator. You can find more information about RTCV and Vanguard on the RTCV repo. https://github.com/ircluzar/RTCV
All RTC code has been migrated to that repo and development will be taking place there now.
Please consult the Official Wiki for software documentation. https://corrupt.wiki
Download link: http://redscientist.com/rtc