Measurements of density, ultrasonic velocity and viscosities for binary mixtures of methyl salicylate(1) + dimethyl sulfoxide(2), ethyl salicylate(1) + dimethyl sulfoxide(2), methyl benzoate(1) + dimethylsulfoxide(2) and benzyl salicylate(1) + dimethyl sulfoxide(2) respectively are reported from 303.15-318.15 K over the entire range of composition. Also other related physical parameters viz. adiabatic compressibility, excess adiabatic compressibility, intermolecular freelength, Rao's constant, Wada's constant, excess volume and excess viscosity have been computed. The extent and nature of interactions among the component liquids are discussed.