http://msdn.microsoft.com/en-us/library/windows/desktop/ms633500(v=vs.85).aspx
http://www.nullskull.com/q/10279686/excel-vba.aspx
http://www.excelforum.com/excel-programming-vba-macros/1013713-auto-save-ie-file-download-dialog-box-in-a-user-defined-path-print.html
https://www.smartworld.dk/content/4-Download-vejledninger