Winamp and Subsonic (localhost) problem

[plouffy]

Hi,
Winamp doesn't work with Subsonic (localhost): It receives the url, but it stays like that in winamp playlist:
[connecting to host] http://localhost/stream?player=7&pathUt ... ...........

Winamp works fine with Internet streams.
The url works in foobar too (copy/paste and show the right mp3 name).
I really don't understand why it doesn't start to play.

Thanks for helping.

Windows 7 64 bits (french).