The hosts file is a plain text file used by your operating system to map hostnames to IP addresses. It has priority over DNS (Domain Name System). When you type www.google.com , your PC checks the Hosts file first. If it finds an entry, it goes there without asking the internet.
# SolidWorks License Block List 127.0.0.1 localhost 127.0.0.1 swx.licensing.com 127.0.0.1 licensing.solidworks.com 127.0.0.1 register.solidworks.com 127.0.0.1 solidworks.com.licensing.com 127.0.0.1 lmtools.com 127.0.0.1 ############################### ::1 localhost If you are running a local SolidWorks License Server (LMTOOLS) on your own machine (IP 127.0.0.1 ), you might need to redirect the service: solidworks host file block fix
127.0.0.1 activation.solidworks.com 127.0.0.1 upgrade.solidworks.com 127.0.0.1 crashdump.solidworks.com 127.0.0.1 performance.solidworks.com 127.0.0.1 solidworks.licensing.3ds.com 127.0.0.1 license.3ds.com 127.0.0.1 dslic.solidworks.com Yes, but with caveats. The hosts file is a plain text file