Some SolidWorks network licenses rely on a "Heartbeat." If the software cannot ping the activation server every 30 to 90 days, it assumes the license is stolen and disables itself. Adding a block stops this remote kill-switch.
Right-click on in the results and select Run as administrator . 3. Open the Hosts File In Notepad, go to File > Open . Navigate to C:\Windows\System32\drivers\etc\ .
In temporary testing environments, you may not want to use a license seat.
If corporate network blocks are permanent, use a different, unrestricted machine to download the "Full Installation Fileset." Transfer the multi-gigabyte folder via an external drive to run the installation fully offline.
Delete the entire line for any entry that blocks these domains. Alternatively, place a hashtag ( # ) at the very beginning of the line. The hashtag converts the line into a comment, forcing Windows to ignore the block without permanently deleting the data. Step 4: Save the Changes Click and choose Save (or press Ctrl + S ). Close Notepad. Flushing the DNS Cache solidworks host file block install
During installation, SolidWorks requires an active internet connection to verify your standalone serial number or connect to a SolidWorks Network License (SNL) Manager. It reaches out to secure validation URLs (such as ://solidworks.com ). How Blocks Occur
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If you are using a network license, the firewall is the most likely culprit.
To fix a blocked installation, you must inspect and clean the Windows hosts file. Because this is a protected system file, you need administrative privileges to modify it. Step 1: Open Notepad as an Administrator Press the on your keyboard. Type Notepad into the search bar. Right-click on Notepad in the search results. Select Run as administrator . Step 2: Navigate to the Hosts Directory Some SolidWorks network licenses rely on a "Heartbeat
Type the following command and press : ipconfig /flushdns . 4. Troubleshooting Common Blocks
In the world of computer-aided design (CAD), Dassault Systèmes’ SolidWorks stands as a colossus. However, for students, hobbyists, and professionals on a tight budget, its substantial licensing cost often presents a formidable barrier. This financial reality has given rise to a common, albeit legally ambiguous, technical workaround: modifying the Windows Hosts file to block the software’s internet access during installation. This practice, often called "cracking" or "patching," is a deliberate act of digital isolation—a modern drawbridge raised against the manufacturer’s license servers.
Some third-party firewalls, antivirus suites, or malware removal tools automatically append corporate or activation domains to the hosts file to prevent data tracking.
Overcoming SOLIDWORKS Installation Blocks via the Host File SOLIDWORKS installations often stall or fail due to network validation errors, which are frequently caused by improper configurations in your Windows hosts file. This comprehensive technical guide explains how to identify, troubleshoot, and resolve host file blocks to ensure a seamless SOLIDWORKS installation. Understanding the Windows Hosts File In temporary testing environments, you may not want
If it is not listed, click and browse to your SolidWorks installation source folder to add sldim.exe . Best Practices for a Smooth SolidWorks Installation
Using the Hosts file is a straightforward technique, but there are important guidelines to follow.
SolidWorks is the gold standard for 3D CAD design, used by millions of engineers and designers worldwide. However, one of the most common pain points for IT administrators and power users is managing the software’s constant attempts to "phone home." Whether you are running a legitimate standalone license, managing a network license server, or troubleshooting a failed installation, you have likely encountered the term: .
The "block" refers to redirecting these specific domain names back to your own computer ( 127.0.0.1 or 0.0.0.0 ). By doing a , you prevent the software from verifying the license status externally.
Read your SolidWorks EULA (End User License Agreement). Most clauses state: