Itunes wont open at all

[Rongi]

i tried uninstall reinstall to no avail

i tried this http://docs.info.apple.com/article.html?artnum=302386 which didnt work it said something on apple about updating my firewall, but i dont have one

i am using a PC
my os is Windows XP
i'm using itunes 6 ( last time i checked at least )
i have not installed anything that could be interefering
i have tried a virus scan and unless mcaffe is broken i am completely virus free, which is good :D