How can you install WinPcap silently via the Windows command line?

WinPcap can be installed via command line by simulating its installation: copy `packet.dll` and `wpcap.dll` to `%SystemRoot%\system32`, copy `npf.sys` to `%SystemRoot%\system32\drivers`, then create and start the npf service using `sc create npf` and `sc start npf`. A batch script can automate this for both 32-bit and 64-bit systems, making it ideal for internal network penetration where GUI installation is not available. This technique is covered in detail in the article Penetration Techniques - Running Masscan and Nmap on Windows Platform.