Autodesk, Inc. AutoCAD DLL opennurbs.dll

Repair Opennurbs.dll DLL Issues (How to Download and Fix)

Last Updated: 11/27/2023
[Time to Read: ~3-5 minutes]

Public openNURBS Dynamic Link Library files, such as opennurbs.dll, are considered a type of Win64 DLL (Dynamic link library) file. They are associated with the DLL file extension, developed by Autodesk, Inc. for Public openNURBS.

The first version of opennurbs.dll for AutoCAD 2019 was seen on 10/24/2018 in Windows 10. This is not only most recent release from Autodesk, Inc., but it's the only version known in existence.

This article discusses complete file details, DLL file troubleshooting instructions for problems with opennurbs.dll, and a comprehensive set of free downloads for every file version that has been catalogued by our team.

File Analysis Provided by Jason Geater (Author)


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File Overview


General Information ✻
File Name: opennurbs.dll
File Extension: DLL file extension
Description: Public openNURBS Dynamic Link Library
Object File Type: Dynamic link library
File Operating System: Win32
MIME Type: application/octet-stream
User Popularity Rating:
 
Developer and Software Information
Software Program: Public openNURBS
Legal Copyright: Copyright (C) 1993-2018, Robert McNeel & Associates. All Rights Reserved.
Developer: Autodesk, Inc.
Software: AutoCAD
Software Version: 2019
File Details
Character Set: Unicode
Language Code: English (U.S.)
File Flags: (none)
File Flags Mask: 0x0002
Entry Point: 0xa1af
Code Size: 4995584
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What are opennurbs.dll Error Messages?


Dynamic Link Library opennurbs.dll Errors

opennurbs.dll is considered a type of Dynamic Link Library (DLL) file. Dynamic Link Library files, like opennurbs.dll, are essentially a "guide book" that stores information and instructions for executable (EXE) files - like Setup.exe - to follow. These files were created so that multiple programs (eg. AutoCAD) could share the same opennurbs.dll file, saving valuable memory allocation, therefore making your computer run more efficiently.

Unfortunately, what makes DLL files so convenient and efficient, also makes them extremely vulnerable to problems. If something happens to a shared DLL file, either it goes missing or gets corrupted in some way, it can generate a "runtime" error message. Runtime is pretty self-explanatory; it means that these errors are triggered when opennurbs.dll is attempted to be loaded either when AutoCAD is starting up, or in some cases already running. Some of the most common opennurbs.dll errors include:

Your opennurbs.dll file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with AutoCAD), or deleted by a malware infection. Furthermore, opennurbs.dll file corruption could be caused from a power outage when loading AutoCAD, system crash while loading opennurbs.dll, bad sectors on your storage media (usually your primary hard drive), or quite commonly, a malware infection. Thus, it's critical to make sure your anti-virus is kept up-to-date and scanning regularly.

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How to Fix opennurbs.dll Errors in 3 Steps (Time to complete: ~5-15 minutes)

If you're encountering one of the error messages above, follow these troubleshooting steps to resolve your opennurbs.dll issue. These troubleshooting steps are listed in the recommended order of execution.


Step 1: Restore your PC back to the latest restore point, "snapshot", or backup image before error occurred.

To begin System Restore (Windows XP, Vista, 7, 8, and 10):

  1. Hit the Windows Start button
  2. When you see the search box, type "System Restore" and press "ENTER".
  3. In the search results, find and click System Restore.
  4. Please enter the administrator password (if applicable / prompted).
  5. Follow the steps in the System Restore Wizard to choose a relevant restore point.
  6. Restore your computer to that backup image.

If the Step 1 fails to resolve the opennurbs.dll error, please proceed to the Step 2 below.

Step 2: If recently installed AutoCAD (or related software), uninstall then try reinstalling AutoCAD software.

You can uninstall AutoCAD software by following these instructions (Windows XP, Vista, 7, 8, and 10):

  1. Hit the Windows Start button
  2. In the search box, type "Uninstall" and press "ENTER".
  3. In the search results, find and click "Add or Remove Programs"
  4. Find the entry for AutoCAD 2019 and click "Uninstall"
  5. Follow the prompts for uninstallation.

After the software has been fully uninstalled, restart your PC and reinstall AutoCAD software.

If this Step 2 fails as well, please proceed to the Step 3 below.

AutoCAD 2019

Autodesk, Inc.

Step 3: Perform a Windows Update.

When the first two steps haven't solved your issue, it might be a good idea to run Windows Update. Many opennurbs.dll error messages that are encountered can be contributed to an outdated Windows Operating System. To run Windows Update, please follow these easy steps:

  1. Hit the Windows Start button
  2. In the search box, type "Update" and press "ENTER".
  3. In the Windows Update dialog box, click "Check for Updates" (or similar button depending on your Windows version)
  4. If updates are available for download, click "Install Updates".
  5. After the update is completed, restart your PC.

If Windows Update failed to resolve the opennurbs.dll error message, please proceed to next step. Please note that this final step is recommended for advanced PC users only.

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If Those Steps Fail: Download and Replace Your opennurbs.dll File (Caution: Advanced)

If none of the previous three troubleshooting steps have resolved your issue, you can try a more aggressive approach (Note: Not recommended for amateur PC users) by downloading and replacing your appropriate opennurbs.dll file version. We maintain a comprehensive database of 100% malware-free opennurbs.dll files for every applicable version of AutoCAD. Please follow the steps below to download and properly replace you file:

  1. Locate your Windows operating system version in the list of below "Download opennurbs.dll Files".
  2. Click the appropriate "Download Now" button and download your Windows file version.
  3. Copy this file to the appropriate AutoCAD folder location:
    Windows 10: C:\Autodesk\WI\Autodesk AutoCAD 2020\x64\acad\PF\Root\
    Windows 10: C:\Program Files\Autodesk\AutoCAD 2020\
  4. Restart your computer.

If this final step has failed and you're still encountering the error, you're only remaining option is to do a clean installation of Windows 10.


GEEK TIP : We must emphasize that reinstalling Windows will be a very time-consuming and advanced task to resolve opennurbs.dll problems. To avoid data loss, you must be sure that you have backed-up all of your important documents, pictures, software installers, and other personal data before beginning the process. If you are not currently backing up your data, you need to do so immediately.

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Download opennurbs.dll Files (Malware-Tested 100% Clean)


CAUTION : We strongly advise against downloading and copying opennurbs.dll to your appropriate Windows system directory. Autodesk, Inc. typically does not release AutoCAD DLL files for download because they are bundled together inside of a software installer. The installer's task is to ensure that all correct verifications have been made before installing and placing opennurbs.dll and all other DLL files for AutoCAD. An incorrectly installed DLL file may create system instability and could cause your program or operating system to stop functioning altogether. Proceed with caution.

Windows 10
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Files Related to opennurbs.dll


DLL Files Related to opennurbs.dll

File Name Description Software Program (Version) File Size (bytes) File Location
AcExpressRes.dll AutoCAD component AutoCAD (23.1.47.0.0) 54144 C:\Program Files\WindowsApps\Microsoft.GetHelp_...
SMData.dll SMData Autodesk, Inc. SMData (Autodesk Inventor 2020) 3005888 C:\Program Files\WindowsApps\Microsoft.XboxApp_...
mfc110kor.dll MFC Language Specific Resources Microsoft® Visual Studio® 2012 (11.0.60610.1) 53328 C:\Windows\System32\winevt\Logs\
ssleay32.dll OpenSSL Shared Library The OpenSSL Toolkit (1.0.2l) 291192 C:\Users\Tester\AppData\Local\Packages\Microsof...
xactengine2_1.dll XACT Engine API Microsoft® DirectX for Windows® (9.12.589.0000) 352464 C:\Windows\System32\winevt\Logs\

Other Files Related to opennurbs.dll

File Name Description Software Program (Version) File Size (bytes) File Location
CBS.log Log Autodesk DWF Viewer 7 888726 C:\Windows\Logs\CBS\
CBS.log Log DWG TrueView 2019 1158762 C:\Windows\Logs\CBS\
setuperr.log Log DWG TrueView 2019 1521 C:\Windows\Logs\DPX\
setupact.log Log AutoCAD 2019 319210 C:\Windows\Logs\DPX\
setupact.log Log AutoCAD 2019 62521 C:\Windows\Panther\UnattendGC\


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