It sounds like you’re dealing with a licensing issue (often abbreviated WSv3 — Windows Server version 3, though that’s not an official Microsoft term).
If you are using the software to control physical decoders (like the DS-6400 series), you need per-decoder licenses. wsv3 license key
A license key is usually hardware-locked . This means the key is tied to the computer’s network card MAC address or CPU ID. You cannot freely move a license from one PC to another without first deactivating it. It sounds like you’re dealing with a licensing
WSV3 is not typically sold on Amazon or eBay (those are often gray-market or counterfeit). You must go through: This means the key is tied to the
You can then activate the same key on a new machine in seconds. No VM Support : Note that the licensing system (LimeLM) does not support Virtual Machines (VMs) or environments with Hypervisor enabled due to security settings. Troubleshooting Common Issues Billing/Cancellation : Subscriptions are managed via a FastSpring link sent in your confirmation email.
Pricing varies, but a general ballpark (as of 2025):