removal of fixed rear side glass

[Jvan]

Can anyone tell me or direct me to information on how to remove the FIXED. REAR SIDE GLASS. Not the movable side windows but the rear FIXED section of glass that goes along the roof line and down the back side by the rear window.I need to replace my passenger side window and am having difficulty locating a replacement window but a forum member nearby has one but doesn't know how to remove it and neither do I.