>>>I am using Image Control to display bmp files in a form. Is there a way to create a zoom out / zoom in effect without having to use third party product ?
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>>Try to resize it dynamically, i.e. change Width/Height properties.
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>Changing Width/height only chnages the size of the display area, I need to scale the image up or down like Paint does for zoom x2, x6 etc.

You should have Image.Stretch=1 (Isometric)