Abstract
High mass young stellar objects (YSOs) are usually deeply embedded in their natal environment which can be penetrated only at wavelengths beyond the mid infrared. However, taking advantage of ``curtain-lifting'' stellar winds and ionizing photons from neighbouring SpT O main sequence stars and making use of sensitive, high angular resolution observations in the near and mid infrared, we were able to characterize the circumstellar environment of high mass YSOs at relatively early evolutionary stages. Our study reveals that, during their formation and early evolution, high mass YSOs are unambiguously surrounded by (accretion) disks.
