Abstract: A window assembly for sealingly attaching a window glass (16) to a frame of a motor vehicle door (6), includes a sealing assembly in combination with a window glass. The sealing assembly comprises a sealing, trimming or guiding strip (30) comprising a length of extruded material, a polypropylene or the like part (58) which is joined to the window glass (16) at an edge of the window glass (16), and a moulded material (60, 160), which is joined to the polypropylene or the like part (58) and connected to said sealing strip (30). The moulded material (60, 160) is preferably made of TPE. The strip (30) is preferably made of EPDM. The moulded material (60, 160) is moulded in a mould with the polypropylene or the like part (58), which has previously been moulded onto the window glass (16), and the strip (30) to mould onto and thereby connect to these parts.