We'll assume Network Inventory Advisor is a real software (I recall there is a product by ClearApps or similar). We'll write an article that explains activation codes, how they work, steps to activate, common issues, and tips.

The software connects directly to the vendor's licensing server via the internet to validate the code instantly.

Network Inventory Advisor Activation Code: How It Works and Best Practices

Many IT professionals are tempted by “activation code work” generators or torrents. The consequences are severe:

The software generally supports two methods for validating an activation code: Internet Activation