How to remap combinations of keys including the windows key?
This can be done via AutoHotKey.
Once you've downloaded and installed AHK, open a black Notepad and enter ^w::#w. Then save the file as fileName.ahk and double click to run it. Pressing ctrl+w will now send WindowsLogoKey+w. This can be done with as many shortcut keys as you'd like and can be used to create complex shortcuts, hotkeys, and hotstrings as well.