The latest release continues to support the VBA development environment, but you need to download and install the runtime and development environment separately.
When migrating to the latest release, not all VBA projects or applications that utilize the AutoCAD ActiveX APIs might work. While ActiveX is designed to be supported across multiple releases, based on the targeted release of the project or application, some code statements might be written to target a specific AutoCAD or library release.
The following table lists the filename of the AutoCAD object library that is supported by AutoCAD-based product release.
| Release | Release Number | AutoCAD Type Library | AutoCAD/ObjectDBX Type Library |
|---|---|---|---|
| AutoCAD 2022 | 24.1 | acax24<language>.tlb | axdb24<language>.tlb |
| AutoCAD 2021 | 24.0 | acax24<language>.tlb | axdb24<language>.tlb |
| AutoCAD 2020 | 23.1 | acax23<language>.tlb | axdb23<language>.tlb |
| AutoCAD 2019 | 23.0 | acax23<language>.tlb | axdb23<language>.tlb |
| AutoCAD 2018 | 22.0 | acax22<language>.tlb | axdb22<language>.tlb |
| AutoCAD 2017 | 21.0 | acax21<language>.tlb | axdb21<language>.tlb |
| AutoCAD 2016 | 20.1 | acax20<language>.tlb | axdb20<language>.tlb |
| AutoCAD 2015 | 20.0 | acax20<language>.tlb | axdb20<language>.tlb |
| AutoCAD 2014 | 19.1 | acax19<language>.tlb | axdb19<language>.tlb |
| AutoCAD 2013 | 19.0 | acax19<language>.tlb | axdb19<language>.tlb |
| AutoCAD 2012 | 18.2 | acax18<language>.tlb | axdb18<language>.tlb |
| AutoCAD 2011 | 18.1 | acax18<language>.tlb | axdb18<language>.tlb |
| AutoCAD 2010 | 18.0 | acax18<language>.tlb | axdb18<language>.tlb |
| AutoCAD 2009 | 17.2 | acax17<language>.tlb | axdb17<language>.tlb |
| AutoCAD 2008 | 17.1 | acax17<language>.tlb | axdb17<language>.tlb |
| AutoCAD 2007 | 17.0 | acax17<language>.tlb | axdb17<language>.tlb |
| AutoCAD 2006 | 16.2 | acax16<language>.tlb | axdb16<language>.tlb |
| AutoCAD 2005 | 16.1 | acax16<language>.tlb | axdb16<language>.tlb |
| AutoCAD 2004 | 16.0 | acax16<language>.tlb | axdb16<language>.tlb |
| AutoCAD 2002 | 15.2 | acax15.tlb | axdb15.tlb |
| AutoCAD 2000i | 15.1 | acax15.tlb | axdb15.tlb |
| AutoCAD 2000 | 15.0 | acax15.tlb | axdb15.tlb |
For a general history of the changes made to the ActiveX API, see “Introduction > ActiveX API History“ in the ActiveX Developer’s Guide (<drive>:\Program Files\Common Files\Autodesk Shared\<locale>\acad_aag.chm).
The following lists filenames of the other AutoCAD ActiveX APIs used by earlier releases and the object library files that they have been replaced with the latest release: