Abstract: Window operating apparatus includes a housing portion, a support portion, a drive portion, a power supplying portion and a mounting portion. The housing portion includes a base section and a cover member disposed over the base section including a top section and sidewall sections extending downwardly from peripheral edges thereof engageable with the base section. The support portion includes opposed upwardly extending end sections. The drive portion which is supported between the end sections and secured thereto includes a gear train disposed adjacent the top section, the gear train including meshing gear members rotatable in a plane substantially parallel to the top section. An electrical motor affixed below one end of the gear train adjacent the base section includes an output shaft extending upwardly from the motor and engaging one of the gear members in the gear train.