I am using a library computer which doesn't allow for me to install anything, however i would like to install a file/zip extractor on a thumb drive, i just tried a program called Peazip which said it was no install but when i tried to use the .exe the computer wouldn't let me. So does anyone know a good, free, no-install, portable zip extractor, i have alot of files that need to be unzipped some as big as 8 GB, so an online extractor won't work.