Description of BDiff / BPatch Utilities :
BDiff is used to output information about the differences between two files, with the option to output binary information. BPatch can apply the binary patches created by BDiff. Both programs are command line tools.These programs are versions of Stefan Reuther's bdiff and bpatch utilities, compiled from Pascal translations of the original C source.The download includes BDiff.exe and BPatch.exe, all Pascal and C source code along with documentation.