To get it connecting and synchronizing, you have to edit zclassic.conf (in linux ~/.zclassic/zclassic.conf). See: https://www.reddit.com/r/ZClassic/comments/7kynho/how_to_install_the_windows_zclassic_wallet_yes/. In linux you might not need to download the sprout-proving.key and sprout-verifying.key files, if the command ./zcutil/fetch-params.sh works. I didn't try to install in windows.