Here you can download Design Manager installation files

Design Manager 2022.3.0 works with:
AutoCAD and AutoCAD LT 2000-2022 (32 & 64 bit)
Inventor 2022 (64 bit) (64 bit does NOT work on Windows 8, Windows 10/11 is OK)
Notes:
1/ For new installations download the Design Manager setup and execute it. To specify folders select 'Choose Folders and Install'
2/ For existing installations use the Design Manager Update download.
3/ Release Codes are required to run these applications.
4/ For full functionality Design Manager requires the AutoCAD VBA enabler to be installed for the version of AutoCAD in use..
5/ If using Windows 7, 10 or 11 we advise you to run Design Manager and AutoCAD/Inventor as Administrator, you can make this setting in the Windows properties for the application under the Compatibility tab. Also turn off UAC.
6/ If the database files are on a Windows server make sure users have EXPLICIT ‘Full Control’ rights over the folder
Membership of a group with rights is not sufficient due to an anomaly with Windows Server and .DBF files.
7/ Application Caption setting for R2022 is AutoCAD 20
8/ OLE Object settings for older AutoCAD versions, use AutoCAD.Application.XX and substitute the appropriate number below for XX.X:
R14 = 14.0, 2000 = 15.0, 2002 = 15.0, 2004 = 16.0, 2005 = 16.1, 2006 = 16.2, 2007 = 17.0, 2008 = 17.1, 2009 -= 17.2, 2010 = 18.0, 2011 = 18.1, 2012 = 18.2,
2013 = 19.0, 2014 = 19.1, 2015 = 20.0, 2016 = 20.1, 2017 = 21, 2018 = 22, 2019 = 23, 2020 = 23.1, 2021 = 24, 2022 = 24.1
Full Installation, AutoCAD & LT 2022 (32 & 64 bit), Inventor 2021 Version (64 bit)
Updates Design Manager to the latest version, use if Design Manager is already installed.
Installs Design Manager with a set of files that follow the Tutorial in the Help file
Floating License manager installation
Client Server Application
Self running demo of Design Manager
AutoDesk Download page for VBA Enablers
Check here for AutoCAD/Inventor compatibility and bug fixes