ADMEWORKS Predictor is a high-speed virtual (in silico) screening system intended for simultaneous evaluation of the ADMET properties of compounds. It complements existing in silico technologies for evaluating pharmacological properties. Simultaneous evaluation of the pharmacological as well as the ADMET properties of compounds is useful in the discovery phase to produce balanced quality hits, and also in the lead optimization phase to lessen the occurrence of faulty leads. ADMEWORKS Predictor also makes it possible to prioritize while simultaneously evaluating these properties. By freely ranking the properties according to their relative importance, ADMEWORKS Predictor allows for a more focused screening of compounds, stressing only the properties that are of highest interest.