Computer software programs for managing environmental control, access control and energy management in commercial, industrial and institutional buildings, with the capacity to be used in a network of independent software systems that are able to share their individual databases; electronic process control units in the nature of LAN-based electronic controllers for use in the control of building systems, namely, for controlling and monitoring environmental control, access control and energy management in commercial, industrial and institutional buildings; electronic network controllers for use in the control of building systems, namely, for managing environmental control, access control and energy management in commercial, industrial and institutional buildings; electrical controllers; micro regulators in the nature of miniaturized electronic controllers for use in the control of building systems, namely, for managing environmental control, access control and energy management in commercial, industrial and institutional buildings; micro regulator controllers for use in the control of building systems, namely, for managing environmental control, access control and energy management in commercial, industrial and institutional buildings; thermostats; electronic controllers for controlling the operation of doors; digital input and output scanners, namely, electronic controllers in the nature of peripheral component interface hardware enabling communication between a computer and its peripherals for use in the control of building systems, namely, for managing environmental control, access control and energy management in commercial, industrial and institutional buildings; anti-intrusion alarms; security devices, namely, electronic intrusion detectors; gas detectors for detecting the presence of gas; fire and smoke detectors; warning devices, namely, warning bells; electric warning lights; metal cabinets specially adapted to protect electronic controllers for controlling and monitoring environmental control, access control and energy management in commercial, industrial and institutional buildings; electronic display interfaces; LCDs