Extract cbr2ct.exe to your CT directory.
Syntax (do not actually type the <> or  characters):
cbr2ct [-f] <call.LOG> [output.BIN]
Because this is a DOS program compiled with a DOS compiler, the input file name ("call.LOG" above) must be in the 8.3 format. Long file names are not supported, and will result in a "Could not open input file" message. It is possible for me to create a version of the program with long file name support that will only run on Windows, but so far, nobody has asked.
If the output filename is not specified, then the output filename will be the same base name as the input filename, but with a .BIN extension (i.e. call.BIN). You can type the program name by itself to see the command syntax and contests that are supported. The program will ask you if you want to overwrite the .BIN file if it already exists. If you use the -f switch, the program will not ask, it will just write the file. The program will exit immediately if the input file is not in a recognized Cabrillo format. The program may also exit prematurely if it finds unrecognized Cabrillo tags, or invalid tag values.
The program extracts the contest information from the Cabrillo header. It only writes one address line in the CT log, based on the first ADDRESS field encountered in the Cabrillo file. This is because it's too hard to try to parse foreign addresses into Town, State, ZIP Code and Country fields.
The program will set the "other radio" flag for QSOs so indicated in the Cabrillo log. This is the same as typing ALT-Y in CT.