wlanapi.dll not found — what should I do?

The wlanapi.dll file is part of the Wireless LAN Service component, which is often disabled by default in server editions of Windows (e.g., Windows Server).

To resolve the error:

1. Open Server Manager;
2. Go to Manage → Add Roles and Features;
3. In the Add Roles and Features Wizard, proceed to the Features step;
4. In the features list, find and check Wireless LAN Service;
5. Click Install and wait for the process to complete;
6. Reboot the server.

After the restart, the wlanapi.dll file will be available in the system, and the error will be resolved.

Note: Even on physical servers without a Wi-Fi adapter, this component can still be installed. Some applications require it—even when wireless connectivity is not in use.