The "cef" in the filename is highly indicative of its underlying technology. It likely stands for .

qcef.exe typically registers itself to run automatically upon Windows startup. Even if you have not explicitly opened the parent application (like QuickZip), the process will sit idle in the background. Because it utilizes the Chromium Embedded Framework, it can be resource-heavy, consuming RAM and occasionally spiking CPU usage.

Right-click the file, select Properties , and check the Digital Signatures tab. Legitimate files are signed by their respective developers (e.g., Fengtao Software).

No, qcef.exe is not a virus in the strict definition of the term.