Revit® | How to stop hsbDesign for Revit® opening in a certain version of Revit®
This document will show you how to open a Revit drawing in the Revit® version you want it to open.
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If you have different Revit® versions installed on your computer and you open a Revit drawing by double clicking on the drawing it might open in a version you don't want it to open.
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First of all we need to edit the PackageContents.xml file.
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The PackageContents.xml file is located in the hsbDesign for Revit® installation path which is in C:\ProgramData\Autodesk\ApplicationPlugins\hsbOnRevit.bundle
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Open this file in Notepad.
Remove the part marked in RED.
In this case I removed the version 2021.