Executable PIB.exe is the main component of an adware program, designed to track user’s activity in the Internet and display commercial advertisements or pop-ups with similar content. Running nls.exe secretly connects to the Internet, contacts certain web servers and transfers gathered information there or receives instructions and some files. Although such activity cannot harm a computer directly, PIB.exe can violate user’s privacy and should be removed from the system along with other adware components. It is highly recommended to use spyware removal tools.