PC Activity Monitor Lite - Version 7.2 PC Activity Monitor Lite (PC Acme Lite) is an ultimate invisible and undetectable easy-to-use monitoring and surveillance tool for personal PCs. It is professional software that captures all users activity on the PC. It is completely hidden, and even the experienced user cannot locate, stop or destroy the program. It is a powerful management tool for users and companies, which want to increase their productivity and profitability.