ng spice version 40 does not exist, actual version is 42, fix "02_Download_Requirement_Files.bat" with this code
rem https://sourceforge.net/projects/ngspice/files/ng-spice-rework/42/
echo ngspice-42 ngspice Files
if not exist ngspice-42.tar.gz DownloadFile https://jaist.dl.sourceforge.net/project/ngspice/ng-spice-rework/42/ngspice-42.tar.gz ngspice-42.tar.gz
if not exist ngspice-42_dll_64.7z DownloadFile https://master.dl.sourceforge.net/project/ngspice/ng-spice-rework/42/ngspice-42_dll_64.7z ngspice-42_dll_64.7z
then add the following command to "05_Extract_Requirement_Files.bat" because make file in step 12 expects a folder named "ngspice-40".
change
tar -xf ngspice-40.tar.gz
into
tar -xf ngspice-42.tar.gz
paste the following command after "tar -xf ngspice-42.tar.gz"
ng spice version 40 does not exist, actual version is 42, fix "02_Download_Requirement_Files.bat" with this code
then add the following command to "05_Extract_Requirement_Files.bat" because make file in step 12 expects a folder named "ngspice-40". change
tar -xf ngspice-40.tar.gz
into
tar -xf ngspice-42.tar.gz
paste the following command after "tar -xf ngspice-42.tar.gz"
ren ngspice-42 ngspice-40
ren ngspice-42_dll_64.7z ngspice-40_dll_64.7z
boost is not downloadable from the former link
change download string with this
if not exist boost_1_81_0.zip DownloadFile https://sourceforge.net/projects/boost/files/boost/1.81.0/boost_1_81_0.zip