compute_diff.bat

@echo off
set /p %main%="Enter the name of the updated %main% file (without extensions): "
set /p %main_old%="Enter the name of the old %main% file (without extensions): "

pdflatex %main%.tex
bibtex %main%
pdflatex %main%.tex
pdflatex %main%.tex

pdflatex %main_old%.tex
bibtex %main_old%
pdflatex %main_old%.tex
pdflatex %main_old%.tex

latexdiff --flatten %main_old%.tex %main%.tex > diff.tex
latexdiff --flatten %main_old%.bbl %main%.bbl > diff.bbl

bibtex diff
pdflatex diff.tex
pdflatex diff.tex

del *.aux
del *.log
del *.out
del *.blg
del *.bbl
del %main%.pdf
del %main_old%.pdf