WinLAP allows the schematic capture and simulation of circuits containing resistors, capacitors, inductors, op amps and controlled sources.

By placing a voltmeter or ammeter component, one can monitor voltage (dB, real, imaginary), current, phase, group delay and pole-zero locations.

Additionally, output response to impulse, step or user-configurable "staircase" input can be viewed.

The program is no longer supported, and several bugs have been reported, although it is in general a robust, albeit somewhat awkward, application.