Lights and shaders are render engine specific. 

The light set predates Iray and DS 4.8 so probably does not have a photometric option. 

You can make sure the windows are glass and light it form outside. You can build a light set for it. (Note that the photometric section of DS 4.8 lights can have both a size and a shape so you only have to use primatives turned into emitters if you want to. 

Since I don't have it in front of me, I can't check, but if it has modeled lights with material zones for those lights, then you can light those up and use them for a light source.

Don't forget to adjust your tone mapper, since the default is outside on a bright sunny day.