PC Activity Monitor Lite (PC Acme Lite) is designed for monitoring user''s PC activity. PC Acme Lite works under Windows 2000/XP operating systems. All data collected by the monitoring are saved to the encrypted log file located on the user''s machine. Monitoring program works in background transparent for the user on the level of OS kernel. PC Acme Lite supports UNICODE i.e. it is able to record even the languages with hieroglyphic writing. Another strong side of PC Acme Lite is its protection measures. It is completely hidden and even the experienced user cannot locate stop or destroy the program. PC Acme Lite ensures registration of the following events: typing clipboard operation application start and termination (from the moment of OS loading) mouse manipulation opening and close of windows. Additionally at opening and closing windows the following information is registered: text in the window registration of list elements for the components listbox combobox listview treeview etc. Each event has its own timestamp. Information from the log file after it has been correspondingly decoded and operated is entered in the database (DB). Reports from the DB are converted to HTML format for more convenient viewing in browser.