Hi!

FC wih option /B does the same. Just try it. Anyway, if you want, I can send you a quick memo/string scanning algorithm for VFP that you can use to compare 2 long strings (files read into the VFP string).

I do not know any other VFP tools or Windows tools to compare 2 biinary files.

What is the problem, anyway? Did you tried something like following:

#DEFINE nChunks 128
&& adjust chunk size for the best performance. It is very depended on the probability of differences.

&& do following in a loop until eof
lcTemp1 = fread(nFile1Handle,nChunks)
lcTemp2 = fread(nFile2Handle,nChunks)
if !(lcTemp1==lcTemp2)
  && compare them byte by byte
  i = 0
  for i=1 to min(len(lcTemp1),len(lcTemp2))
    if !(substr(lcTemp1,i,1)==substr(lcTemp2,i,1))
      ReportDifference(lnGlobalPosition+i,substr(lcTemp1,i,1),substr(lcTemp2,i,1)) && wriet the difference
    endif
  endfor
endif

lnGlobalPosition = lnGlobalPosition + i

Anyway, above is similar to what the FC does...

HTH.

>FC is not the correct tool.
>The compare is byte/byte at the same position in the file.
>
>Enrico