Autodesk periodically releases updates to the Network License Manager to patch security vulnerabilities and improve compatibility. The latest version for AutoCAD 2023 is NLM 11.18.0.

Legitimate version: In genuine Autodesk software, network licensing components include files like adskflex.exe or lmgrd.exe, not typically Adsknlm.exe. The naming resembles "Autodesk Network License Manager," but the genuine NLM executable is different.

In that case, scan with Windows Defender or Malwarebytes.

Cause: A hung license request loop or an excessive number of users connecting through one license manager. Solution:

A: Launch AutoCAD 2023 → Help (?) → About AutoCAD → Product License Information. If it says "Network License" or "Concurrent Use," then Adsknlm.exe on a server is involved.

1. License Acquisition and Return When a user starts AutoCAD 2023, Adsknlm.exe initiates a request to the license server. It verifies if a license is available. If available, it "checks out" the license, allowing the software to run. Upon exiting the software, this process ensures the license is "checked back in," making it available for other users on the network.

2. Borrowing Licenses For users needing to work offline (e.g., working from home without VPN access), AutoCAD allows "license borrowing." Adsknlm.exe manages the logic of borrowing a license for a specific period, storing a temporary verification file on the local machine so the software can run without connecting to the server for a set time.

3. Communication Protocols The process utilizes specific network ports (typically TCP ports 2080, 27000-27009) to communicate with the license server. It is crucial for IT administrators to ensure these ports are open on firewalls for AutoCAD 2023 to function correctly in a network license environment.

On a properly configured license server, Adsknlm.exe uses:

If you see abnormally high resource usage (e.g., 30%+ CPU constantly), the issue is likely:

Run lmstat -a (from the Network License Manager folder) to monitor real-time license activity and identify which feature or user is causing excessive load.

Adsknlm.exe is a critical component for network-licensed AutoCAD 2023 environments, but an unnecessary background process for standalone users. It is not a virus, but its legitimate name is frequently abused by malware creators. By verifying its digital signature, file location, and behavior, you can confidently determine whether it belongs on your system.

If you are a solo designer or small firm using subscription licenses, you can safely disable or remove Adsknlm.exe to reclaim negligible system resources. However, if you manage a multi-seat deployment, treat Adsknlm.exe with respect—it is the silent gatekeeper keeping your entire team productive.

For further assistance, consult the official Autodesk Network License Manager Guide or visit the Autodesk Knowledge Network. Always download software and updates directly from manage.autodesk.com to avoid counterfeit files masquerading as Adsknlm.exe.

Last updated: 2025 | Applies to AutoCAD 2023, AutoCAD LT 2023, and other Autodesk 2023 suite products.

It looks like you’re asking about a file named Adsknlm.exe in the context of AutoCAD 2023.

Here is the explanation:

Adsknlm.exe is the Autodesk Network License Manager daemon/executable. It is a legitimate file used to manage floating network licenses for Autodesk products, including AutoCAD 2023, in business or educational environments.