Sometimes, due to a bug or a corporate firewall issue, SolidWorks fails to find a valid license server because it is trying to connect to the wrong IP address. Advanced IT administrators may use the HOSTS file to a redirect.
Before proceeding, this article will explain how blocking via the HOSTS file works, why it is done, and the significant legal and security risks involved. This information is provided for educational purposes only regarding how software licensing functions. What is the Windows Hosts File? To understand the "SolidWorks Host File Block," you must first understand the HOSTS file. Located at C:\Windows\System32\drivers\etc\hosts , this is a plain text file that maps hostnames to IP addresses. Solidworks Host File Block
While it is technically possible to add entries like 127.0.0.1 licensing.solidworks.com , modern software will either crash, lock you out after 30 days, or silently report you to the license server via hard-coded IPs that ignore your HOSTS file. Sometimes, due to a bug or a corporate
If you need SolidWorks, pay for it. The subscription includes cloud services, simulation tools, and technical support. The cost of a stolen license—whether via ransomware, legal fines, or lost productivity—is infinitely higher than the retail price. Do not risk your computer or your career for a text file hack that no longer works. This information is provided for educational purposes only
SolidWorks is the gold standard for 3D CAD design, used by millions of engineers and designers worldwide. However, it is also a expensive piece of software, which has led to a notorious cat-and-mouse game between the developer (Dassault Systèmes) and users attempting to circumvent licensing.