I made quick batch script to generate project file.
Disclaimer: script assumes toc and index files share same name, and opening page is index.html
Usage: hhp.bat toc-base-name
@echo off
echo [OPTIONS] > %1.hhp
echo Binary TOC=No >> %1.hhp
echo Binary Index=No >> %1.hhp
echo Compiled file=%1.chm >> %1.hhp
echo Contents file=%1.hhc >> %1.hhp
echo Default Window=%1 >> %1.hhp
echo Default topic=index.html >> %1.hhp
echo Display compile progress=No >> %1.hhp
echo Full text search stop list file=%1.stp >> %1.hhp
echo Full-text search=Yes >> %1.hhp
echo Index file=%1.hhk >> %1.hhp
echo Language=0x409 >> %1.hhp
echo Title=%1 documentation >> %1.hhp
echo. >> %1.hhp
echo [WINDOWS] >> %1.hhp
echo %1="%1","%1.hhc","%1.hhk","index.html","index.html",,,,,0x63520,220,0x10384e,[0,0,1024,768],,,,,,,0 >> %1.hhp
echo. >> %1.hhp
echo [FILES] >> %1.hhp
dir/b/s/a-d | findstr /vi ".hh .bat" >> %1.hhp