windows

I'm trying to figure out a good place to vent air cooled hoods and I have a window identical to this one in a perfect spot, it opens nicely exposing the screen I was thinking if I can easily pop off the window/door portion leaving just the rectangular hole I feel I could build something around...

Just a question to satisfy my curiosity about your choice and why you made it. All the operating systems above have their strengths and weaknesses. I know what works best for me @ home and what I have to use at work and just wondering about others choices/needs.