The ornamental design for a door and windowstopper, as shown and described.
1. Door and window stopper
1.1: Top perspective
1.2: Bottom perspective
1.3: Top
1.4: Bottom
1.5: Front
1.6: Back
The design concerns the visual features of a door and window stopper as shown in the enclosed drawings, in which: fig. 1.1is a top perspective view (right side of the view) of the design; fig. 1.2is a bottom perspective view (left side of the view) of the design; fig. 1.3is a top elevational view of the design; fig. 1.4is a bottom elevational view of the design; fig. 1.5is a front plan view of the design, and; fig. 1.6is a back plan view of the design.