Avoid "license key generators" or "crack" websites. VMware Workstation 9 is a low-level hypervisor; using unauthorized keys or modified installers from third-party sites poses a significant security risk to your host computer's kernel and data.
Released in August 2012, VMware Workstation 9 introduced features like Windows 8 support, USB 3.0, and improved graphics performance. It required a valid license key purchased from VMware or an authorized reseller. Typical license keys were 20-character alphanumeric strings (e.g., XXXXX-XXXXX-XXXXX-XXXXX-XXXXX ), uniquely generated per customer.