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Autodesk has released the Performance Enhancement Tool to address reports of bloated drawings and excruciatingly long AutoCAD Civil 3D drawing load and save times. This problem affects drawings using any version 2013 through 2017. As is Autodesk policy, they only support three versions prior to the current, so the fix described below will cover 2014 through 2017. If you are using 2013, you might consider – should seriously consider – upgrading to a more-recent version.

Addendum, July 29, 2017: Autodesk has updated the Civil 3D Batch Save Utility. Click here.

For AutoCAD Civil 3D 2017, the  Performance Enhancement tool is part of Service Pack 1.1:

http://up.autodesk.com/2017/civ3d/sp1.1.msp

For AutoCAD Civil 3D 2016, the Performance Enhancement tool is part of Service Pack 3:

http://up.autodesk.com/2016/civ3d/c3d2016_x64_sp3.msp

For AutoCAD Civil 3D 2015:

1. Locate the file: C:\Program Files\Autodesk\AutoCAD 2015\AeccNetwork.dbx

2. Check the version of this file. The old file version is 10.4.524.0 (3.08mb)

3. Rename the current AeccNetwork.dbx to OLD_AeccNetwork.dbx

4. Download Performance Repair 2014_2017.zip from https://autodesk.box.com/v/c3dperformancefix

5. Extract the zip contents to a known folder.

6. Browse to the extraction folder, and open the RepairTool_R2015 folder. Copy aeccnetwork.dbx to C:\Program Files\Autodesk\AutoCAD 2015\

For AutoCAD Civil 3D 2014:

1. Locate the file: C:\Program Files\Autodesk\AutoCAD 2014\AeccNetwork.dbx

2. Check the version of this file. The old file version is 10.3.894.0 (3.17mb)

3. Rename the current AeccNetwork.dbx to OLD_AeccNetwork.dbx

4. Download Performance Repair 2014_2017.zip from https://autodesk.box.com/v/c3dperformancefix

5. Extract the zip contents to a known folder.

6. Browse to the extraction folder, and open the RepairTool_R2014 folder. Copy aeccnetwork.dbx to C:\Program Files\Autodesk\AutoCAD 2014\

Important Note: You must install the fix on every AutoCAD Civil 3D workstation that accesses your drawing files. Any drawing that is fixed, if opened by an un-fixed Civil 3D and saved, will be re-infected.

Another Important Note: Installing the service packs and/or aeccnetwork.dbx is only the first step. Your drawings need to be fixed. Each drawing that you own needs to be opened and saved with the updated software. This would be a herculean task if you had to do it manually, but Autodesk has supplied a batch file, script and instructions on how to fix all drawings in a particular folder and its subfolders.

Read the instructions then download the Batch File and Script for your version.

Links to the files:

When your production comes to a halt, the impact is significant. It negatively affects your bottom line.

At Delta Engineering Systems our number one goal is keeping our customers up and running. When you encounter an issue that impedes progress, the support we provide produces results, saving you time and reducing costs.

And at Delta, we don’t just handle software problems. We can also help your staff with how-to workflows using our remote support system. Our unique understanding of how to apply Autodesk solutions to your real-world designs allows us to provide more value with your Autodesk software purchase.

Autodesk Technical Updates and Support

You can also access the latest in product and system information from Autodesk. 

• Product System Requirements & Information
• Training Videos
• Troubleshooting
• Installation & Licensing
• Updates and Service Packs

Click here to access current information

Submit a Support Request 

To initiate a Technical Support request, please contact us at:

530-221-2994
or email support@deltaengineeringsystems.com

Please use the following links to explore AutoCAD Civil 3D and Infraworks technical solutions produced by Delta staff:

Setting the precision on Parcel Reports: https://www.youtube.com/watch?v=88iDbXxxCXU

How to upgrade Survey Figure Prefix and Linework databases: https://www.youtube.com/watch?v=dVrqrVnHHfI

Creating a Roadway Style with parking stripes using InfraWorks: https://www.youtube.com/watch?v=DXW4EMEBeJs

Daylighting a corridor to existing geometry: https://www.youtube.com/watch?v=9yxRDKSFerY

Creating a Structure Label that displays stationing from two alignments:

https://www.youtube.com/watch?v=GbQfkM0MPaQ

An InfraWorks-generated video flyover of a river restoration project: https://www.youtube.com/watch?v=fqiH1wv24UM

Creating a corridor surface boundary for paved area only: https://www.youtube.com/watch?v=CK140vQef0s

Widening Medians: https://www.youtube.com/watch?v=qEjOCm0Qq9w

Using the Camera command to create cross sections with clipping planes: https://www.youtube.com/watch?v=PzhmUQpR91A

Changing the precision in parcel line labels: https://www.youtube.com/watch?v=4jU0fvKTOVs

A quick way to turn off unwanted Section Labels: https://www.youtube.com/watch?v=BV6eeVHAG88

Adding the Borehole command to the Ribbon: https://www.youtube.com/watch?v=NNOA83G64nU

Adding spot elevations to a Surface: https://www.youtube.com/watch?v=M__VRZ-HLDU

Creating Profile Labels that include dimension arrows: https://www.youtube.com/watch?v=UXRC-uFZblc

How to create a Surface from polylines: https://www.youtube.com/watch?v=oiNiYVRiSXo

How to model an existing pipe network from surveyed inverts: https://www.youtube.com/watch?v=fFeFaViDm20