Categories: AutoCAD 2008AutoCAD 2009AutoCAD 2010AutoCAD 2011AutoCAD 2012AutoCAD 2013AutoCAD 2014AutoCAD 2015AutoCAD 2016AutoCAD 2017AutoCAD 2018

Visual Basic Applications run very slow in AutoCAD 64bit

If you use VBA inside of 32bit AutoCAD you will have noticed that it is around 1000x times slower when running the same VBA code inside of 64bit AutoCAD.

This is because AutoCAD 64bit ships with the 32bit VBA DLL in a separate out-of-process executable rather than loading the VBA DLL inside of AutoCAD itself. Therefore, a lot of marshaling is incurred communicating between the out-of-process VBA executable and 64bit AutoCAD.

Other issues you may be seeing: Run-time error ‘429’: ActiveX component can’t create object

Affected, all 64bit versions of (and variants of)

AutoCAD 2008 | AutoCAD 2009 | AutoCAD 2010
AutoCAD 2011 | AutoCAD 2012 | AutoCAD 2013
AutoCAD 2014 | AutoCAD 2015
AutoCAD 2016 | AutoCAD 2017
AutoCAD 2018
AutoCAD 2019
NOTE: Autodesk stopped making 32bit AutoCAD since AutoCAD 2020

The solution to slow running AutoCAD VBA

The best solution is to install 32bit AutoCAD on 64bit Windows, here are the affected versions along with their solution text…

AutoCAD VBA Enabler downloads

AutoCAD VBA enabler modules can be downloaded using the links below…

Tags: 64bit AutoCAD64bit AutoCAD 200864bit AutoCAD 200964bit AutoCAD 201164bit AutoCAD 2012AutoCAD 2008Run-time error '429' ActiveX component can't create objectslow VBA autocad 64bitVBAVBA running slowly AutoCADVisual Basic slow autocad

7 years ago

simonbooth

I just joined the Longbow Software team as a Software Engineer, and I have gladly offered to post some informative blogs for you all to read. Check on the left there, for all my blog entries...