Specific steps to replace (outer) side windows - de-rivet?

[JAG]

Hi David,
I will send some pics after the weekend on the side windows. There are a couple retainers that you have to drill out the rivets on to get the two aft side windows out. Not as bad as you might think though. Some of the retainers unscrew, but my memory serves me, there are a couple retainers that need to be drilled out to remove easily between the two windows. I have removed mine, and just waiting on installing at the moment since the temperature in South Texas is pretty hot - and it is nice to have the windows out as I finish the work and wiring on the inside of the cabin. I am replacing all the windows in the aircraft.

Jeff