There are no windows that open inward on Steamworks Island. There is a skylight in the City Hall that can be opened with the Multi-Tool. You go out the hatch above Zack's room in the living quarters, to reach the Mech Crank on the vines.
You go to the bottom of the vines and click on the windows and they will kill the vines.
its in the museum on mainstreet of steamworks island :)
It's Steamworks Island #14th Island
(The solution is at the related question "How do you beat Steamworks Island")
the crab on steamworks island is next to the living quarters
You just click the windows where the vines are coming out of. You click all three and the windows will close snapping the vines.
You go to Steamworks and head to the museum and there is the Deogen
The windows that the plant popped out of .... click on them they will all close one by one when you click on them.
steamworks island
There is a video walkthrough at the related link below. There are written WikiAnswers solutions at the related questions, as there are for all Poptropica islands. (How do you beat Steamworks Island) (What is the walkthrough for Steamworks Island)
You have to click on the gray shutters on the windows where the vines are so you can snap them. Then Sprocket starts talking to youYou click the windows so you can snap the vine.
Steamworks island