ISO observations and modeling of CO and H2O toward the Orion shock by Eduardo Gonzalez (Universidad de Alcala, Spain)   The Orion Molecular Cloud is the closest region of high-mass star formation and one of the strongest sources of line emission known. The launch of the Infrared Space Observatory (ISO) for the first time allowed for observations of species like water - a molecule which had been predicted to be abundant behind nondissociative shocks - and also allowed measurements to be made at wavelengths inaccessible from the ground, such as the H2O 6.5 micron band. In this talk we review the main observing and modeling results for two of the most abundant species in the OMC-1 shock, CO and H2O, observed by ISO in the mid and far infrared.