Software "AuthTools" (short for Authorization Tools) are common in the world of legacy or hard-to-find software. They typically work in one of a few ways:
In industrial recovery forums, utilities packaged inside files like authtool.zip or qd_auth_fix.zip are often discussed. These utilities serve specific purposes: qickdesigner v37 authtoolzip top
Downloading and using “authtools” or “zips” claiming to bypass software licensing is often illegal (copyright violation) and dangerous (malware, ransomware, data theft). I strongly recommend using only official software from trusted developers. qickdesigner v37 authtoolzip top