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
The best solution is to install 32bit AutoCAD on 64bit Windows, here are the affected versions along with their solution text…
The Adobe Acrobat X plugin for AutoCAD only runs on 32bit AutoCAD, and 32bit AutoCAD only runs on 32bit Windows. This means that you will be stuck if you require the Adobe Acrobat X plugin for AutoCAD and move to newer hardware with 64bit Windows.
Click on one of the links below to see how to install 32bit AutoCAD on 64bit Windows and then be able to install Adobe Acrobat X plugin.
Users complain of “autocad crashes when clicking anything” and “autocad crashing when using ribbon”
It seems that a new Computers with the latest version of Windows 10 or computers that recently ran Windows Update for Windows 10 has caused Ribbon crashing issues with AutoCAD versions…
AutoCAD starts up, but any interactions with AutoCAD’s Ribbon, Status bar, or Right clicking the Command line causes AutoCAD to crash out instantly with:
Error: Unhandled Exception
We found that this issue is caused by the new .NET 4.7 update.
This update came down as part of KB3186568 and comes as standard in Windows 10 Creators Update (version 1703). Uninstalling all of the affected Windows Updates is not a solution because they are eventually forced down by Microsoft; besides Windows updates usually have security updates which stop hackers from gaining access to your computer so they should always be installed.
We have just released an update to fully fix this issue so you can once again rely on Windows Updates. We have solved this problem via our Longbow Converter App, you will need V10.18 or newer. Here’s what you need to do:
Obtain your copy of the Longbow Converter App here
Important: You must first uninstall your current version of AutoCAD before continuing to the next step
Reinstall your AutoCAD by clicking the instructions for your version of AutoCAD below…
If you are trying to open a DWG file with AutoCAD and you get the message “Drawing File was created by an incompatible version” it’s because somewhere along the line your AutoCAD DWG files were saved with a newer version of AutoCAD.
Using Windows Explorer, copy Disk 1 of your Civil 3D 2012 CD to your hard drive, to a folder path c:\Autodesk\Civil3d2012
Next, copy Disk 2 of your Civil 3D CD directly over the top of Disk 1, overwrite all files in your previously copied c:\Autodesk\Civil3d2012 folder
Same again for Disk 3
If you have a single self extracting exe downloaded from Autodesk
Run the exe, it will ask to unzip to a folder inside of c:\Autodesk, make a note of the folder for later use (we’ll refer to it from here as c:\Autodesk\Civil3d2012), now click OK. Wait until all of the files have extracted, when they do, the Civil 3D 2012 setup will automatically launch – simply close it and move to the next step.
Now, start the Longbow Converter tool, select the 1st tab named “AutoCAD 32bit Installer Converter”
Next, using the ‘…‘ button select the newly created c:\Autodesk\civil3d2012 folder, and click the ‘Convert‘ button.
If the Converter complains that this is not a 32bit installer, make sure you select the folder which contains the setup.exe and the setup.ini files in the root of the installation media
Once the conversion process is complete, click Install/Run Setup to start setup. Simply install as normal.
Windows 8, Windows 8.1 and Windows 10 users: Once the installation process is complete, go back to the Converter, select the 3rd tab, pick the newly installed C:\Program Files (x86)\AutoCAD Civil3d 2012 folder, then click Fix.
Now you can happily run your Civil 3D 2012 32bit on Windows 10, Windows 7 and Windows 8 64bit.
Installing the 32bit Civil 3D Service Packs
We recommend that you download and install the latest Service Packs from Autodesk which can be found here –
The Intel Integrated Graphics is a so called “feature” that bypasses your main graphics card to utilize the integrated graphics card save power – the problem is that it for AutoCAD it literally kills AutoCAD performance.
All you need to do is disable the Integrated Graphics feature in your computer’s BIOS setup (usually accessed by pressing a series of shortcut keys right at the start of your computer’s boot sequence startup) and you will be back to normal in no time – just know that disabling this power saving feature will use more battery power obviously.
I can’t comment on how to specifically disable it in your BIOS because it is computer specific, you will have to search for that yourself – I created this link to save you the time searching for “How to disable intel integrated graphics”