I've written incorrect illustration. This is the right one:
+-Wubi---------------------+ | Downloading... | | [++++++++++++++++ ] | | | | [Get from disk] | +--------------------------+
I've written incorrect illustration. This is the right one:
+-Wubi- ------- ------- ------+ ------- ------- ------+
| Downloading... |
| [++++++++++++++++ ] |
| |
| [Get from disk] |
+------