Hi,
I have discovered a problem that Winamp does not startup anymore (crashes) when Bitdefender 2012 is installed.
A re-install of Winamp does not solved the issue.
I noticed this problem when my Bitdefender 2010 was at his end and have to renew my subscription, so I de-install Bitdefender 2010 and installed the latest Bitdefender 2012 (evaluation) and than I discovered this problem with Winamp.
Winamp starts-up and windows tells that I has to be closed and send report to Micr0s0ft.
I de-install the Bitdefender 2012 and Winamp 5.623 is working fine again! 
Any suggestions?