Cleaning those porthole windows

[MojaveJoe]

You know those narrow ones on the ends of your slideout. With a vertical sliding glass, w/locks either side, and the vertical sliding screen.

For years I have struggled trying to clean the bottom glass and the screen, since it don't come out.

Wondering what you guys do to clean these little windows and screens?
Or maybe there's a trick to getting the screen out?

All advice and experiences welcome.
Joe

[Ray,IN]

Same dilemma; I raise the bottom half for cleaning but it leaves a couple inches un-accessible.

[wingnut60]

Open the window--then begin raising the screen on one side ONLY--soon it will become possible to get the screen out. Reverse to put it back. Have done this several times without ruining a screen. Be careful, don't force anything, and you will be alright.
Joe