This program should help administrators fight against instant messengers, games and other time killers widespread in the workplace. Process Blocker is a small and useful utility which block any program specified in its list. Programs can be blocked by filename, full path with wildcard, CRC, user or group. An extremely fast hash function allows blocking applications even if they are moved or renamed. This way it prevents the staff from using any unwanted application. The program is very lightweight and the user interface is simple and clear. With Process Blocker, disabling any program is quick and easy. It supports all versions of Windows, starting from XP and ending with Windows 8.1.