& Construction

Integrated BIM tools, including Revit, AutoCAD, and Civil 3D
& Manufacturing

Professional CAD/CAM tools built on Inventor and AutoCAD
Integrated BIM tools, including Revit, AutoCAD, and Civil 3D
Professional CAD/CAM tools built on Inventor and AutoCAD
Autodesk Support
Jan 29, 2023
Note: Autodesk no longer supports offline activation for 2021 products and later. If you have a perpetual license, you can activate your software by going online only once. After you activate online, you can continue to use 2021 software and later offline. This change doesn't apply to subscription network licenses or previous versions that you already activated offline. You can continue to use them as before.
Request codes are necessary only if you have perpetual license software and need an activation code to manually activate software on a computer with no Internet access. Generating a request code is the first step in the process of manually activating your Autodesk software.
Note: Request codes and manual activation are required only for perpetual license software. You need a valid serial number and product key to generate a request code for your perpetual license software. You don't need a request code for subscription software or to access your software online using a serial number and product key.
You see the screens for generating a request code in the product activation wizard only if your computer isn't connected to the Internet. If your computer has an active Internet connection, the software will assume you want to activate online, and it won't display the screens for a request code.
Most products generate an HTML file with your request code and registration information when you install your Autodesk product using a valid serial number and product key.
Note: The registration file described below may not be available for all products and platforms. If you can't find a previously generated request code, generate a new one following the previous instructions.
To find a request code saved on your computer
Was this information helpful?
The Assistant can help you find answers or contact an agent.
What level of support do you have?
Different subscription plans provide distinct categories of support. Find out the level of support for your plan.
How to buy
Privacy | Do not sell or share my personal information | Cookie preferences | Report noncompliance | Terms of use | Legal | © 2025 Autodesk Inc. All rights reserved