ctin43 <index file> <index member #> <flat key file>
ctin43 must be compiled and linked with a c-tree V4.3 application library. It will not work with a FairCom DB application library.
ctin43 runs in single user mode, and dumps the keys in order, for the designated index member, to a flat file. It uses the same form as ctdidx and ctindx. Convert an index from V4.1F-V4.3C to FairCom DB by first using ctin43 and then ctindx.