Please refresh your local reference to the host file. If you have any drawings open that reference the old version, close and reopen them after reloading the host file.
Adding a new attribute to an existing block - Forums, Autodesk autocad block host file updated
If the constant "AutoCAD Block Host File Updated" is driving you insane, you have several options ranging from workflow changes to system variables. Please refresh your local reference to the host file
💡 If your query refers to the Windows hosts file used to block AutoCAD licensing services, users often add entries like 127.0.0.1 genuine-software2.autodesk.com to prevent license validation alerts. 💡 If your query refers to the Windows
A quick search on Reddit or the Autodesk Forums reveals many users asking: "Is 'AutoCAD Block Host File Updated' a virus?"
Below is a technical overview (white paper style) of this functionality.