It "chews" through activation code by modifying roughly 92% of the files related to the Windows Softare Protection Platform.
The official project has been discontinued for years, meaning any modern "High Quality" downloads are likely unofficial mirrors or potentially bundled with malicious code. Serious Security and Stability Risks Chew WGA 0.9 The Windows 7 Patch.zip High Quality
Historically, it supported various editions of Windows 7, including Ultimate and Professional, in both 32-bit and 64-bit architectures. It "chews" through activation code by modifying roughly