http://shell.windows.com/fileassoc/0409/xml/redir.asp?EXT=apk
http://shell.windows.com/fileassoc/0409/xml/redir.asp?EXT=apk
http://shell.windows.com/fileassoc/0409/xml/redir.asp?EXT=apk
http://en.wikipedia.org/wiki/APK_(file_format)
application/vnd.android.package-archive