Why does my internet worm protection shows error?

i have norton antivirus 2005 version. unfortunately, it is loaded and i dont have its CD

Why does my internet worm protection shows error?computer virus

Your Norton installation has become corrupt. To fix this error you need to reinstall the software, in which case you will need to locate your CD, or if you have an active subscription, you can purchase an upgrade for 40% off;

http://shop.symantecstore.com/store/symn...

Otherwise, ditch that bloatware (Making sure to run the Norton Removal Tool; http://service1.symantec.com/SUPPORT/tsg...

And get a FREE antivirus solution;

AVG

http://free.grisoft.com/doc/2/

BitDefender

http://www.bitdefender.com/PRODUCT-14-en...

Avast

http://www.avast.com/eng/avast_4_home.ht...

Active Virus Shield

http://www.activevirusshield.com/antivir...