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Solidworks Host File Block

SolidWorks Host File Block: A Complete Guide

What is the "Host File Block"?

In the context of SolidWorks, a Host File Block refers to a specific list of URL addresses added to your computer's hosts file. This file acts as a local directory that maps hostnames to IP addresses.

Change the file type filter in the bottom right from Text Documents (*.txt) to All Files to see the hosts file (it has no extension). Solidworks Host File Block

If you are receiving "Cannot find license file" or "License server down" errors (Error -15,10,10061), a rogue entry in your hosts file might be the culprit. SolidWorks Host File Block: A Complete Guide What

How it works (technical)

  • The hosts file maps hostnames to IP addresses before DNS is queried. On Windows it’s located at:

    Flush DNS: After saving, open the Command Prompt and type ipconfig /flushdns to apply the changes. 3. Common "Blocks" and Issues The hosts file maps hostnames to IP addresses