Getting Imposable to find. This is the version that works! 
Ham Radio Deluxe is a popular freeware amateur radio program suite that allow remote control of most popular transceivers using CAT interface.

Along to a logging program, Ham Radio Deluxe 5 offer DM780 a multimode decoding encoding software that allo CW RTTY PSK and more  operating modes.
Many other features are offered by this amazing ham radio program, developed by Simon Brown under the freeware licence and then sold to HRDSoftware LLC that discontinued support for version 5 and released a new commercial version 6.