XP SP1 to SP2 will affect Antivirus?

Hello,
I have a computer in my home with windows XP SP 1 installed, I use Symantec antivirus to scan my computer and keep safe from spyware. I am planning to upgrade to SP2.
I request o tell me whether this up gradation will affect the Symantec products or not.
I could not get reliable info over the internet and hence seeking help from you.
Please help me so that I can update to SP2.
Thank you.
