(Some flavor of Windows assumed...) I'd use Add/Remove Programs to uninstall DW, and then try installing it again. If it still hangs, make sure you don't have other software running that could be causing the problem. If you are down to no other software running and it STILL hangs, you may have to reinstall Windows.
Its getting to program where it tells you its DW and gives the registeration code. After 5 minutes of waiting it does nothing so I end task and try again with the same results. It gives me the not responding status. I am running Win 2000 pro.