The tool you're referring to is called "RemoveWAT" (Windows Activation Toolkit), and it was created by a developer named Hazar. This tool is designed to bypass or remove Windows Activation Technologies (WAT) from Windows 7, allowing users to activate their copies of Windows 7 without a valid product key. Portable Sequencher 414 ★
Using activator tools or bypassing activation mechanisms may violate Microsoft's terms of service and could potentially expose your system to security risks. Wedgie Quiz Girl Direct
You're looking for information on a Windows 7 activator tool.