all the links, examples and info are here:
http://aluigi.org/papers/rfactordec_all.txtthe examples were updated just recently because the previous "syntax" was wrong since based on the old tool, so not it's all ok.
remember only to add the -e and -s options after c:\gmt\rfactordec as showed before and obviously make ever a backup of your files.
so, for answering to your question, extracting them (rfactordec.exe, find.exe and libintl3.dll) in c:\gmt should be better for staying in line with the examples if you don't have much experience with the command-line