However, offline exclusive licensing has a known vulnerability: if the license file is deleted, the server might revert to default (non-exclusive). Therefore, enterprise deployments the license file on each daemon start and alert if missing.

"There's the mix-up," Sarah said gently. "With licensing, the license file isn't just a key—it's a digital fingerprint. When you requested the license, you likely sent us the hardware ID or fingerprint of your Master Terminal. The system generated a license file specifically for that computer. But you’re trying to run the VNC Server on a different machine (the scanners), correct?"

graph LR A[Customer buys license] --> B[Vendor generates license file<br> signed + machine-locked] B --> C[License file transferred via USB/secure channel] C --> D[VNC software on target machine] D --> EVerify signature<br> + machine ID match? E -->|Yes| F[Full features enabled] E -->|No| G[Fallback to restricted mode / error]