No NAM here (Intel based system) : ASUS P5E (X38/Q6600). In any case behavior is similar on my portable (Acer Aspire 5720G/ T5700 /Vista 32).
None of the solutions looked at inthe link (tks) work. I ended up using Winamp 553 with On2shared. This works.
Now, how does one disable WMP in vista?