all the original developers of Winamp have left AOL, in november '04, but AOL will still continu to support Winamp, this means new features won't be added but bugs will be fixed!
BTW Alanoll, if I use this regtweak, Winamp will be associated with Autoplay AudioCDs, no need for the user to check the checkbox

perhaps it is an idea for the msi? it's not really neccessary, cos everyone who wants it can add this line to his regtweaks.reg file:
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\AudioCD\shell\play\command]
@="\"C:\\Program Files\\Winamp\\winamp.exe\" %1"
"Winamp_Back"="\"C:\\Program Files\\Windows Media Player\\wmplayer.exe\" /prefetch:3 /device:AudioCD \"%L\""
Also, I now know how to remove items in the popup window that appears when you insert a CD, asking you wich program to launch... If you don't use WMP for instance, you can remove it so that for example Winamp is the only choice you can make when you insert an AudioCD

if someone is interested I'll put them here but it is perhaps bit offtopic here