I have had this virus for months now and i just cant seem to get rid of it.. at first i thought it was the downloader.mscache because norton found it for about 20 days in a row a couple months ago but could never delete it.. it doesnt show up on my scan now ever but something is definitly wrong! i've tried the symantic page but those instructions didnt work, so im thinking it isnt that virus. This is what it does...

Everytime i get online it opens dozens of .exe files (i can tell because my internet security alerts me every time) but they have random names, although they are repetitive.. examples are: iz7i3.exe, ry6.exe and so forth.. when i hit control alt delete and check my processes it shows usually 20-30 of these running and they make my computer use 100% of its usuage.. im dumbfounded.. i've used every spyware cleaner i could find, i have norton check daily, i tried "the cleaner", cwshredder and more.. does anyone know what is wrong with my computer!?

i have xp2002 on a gateway.. 2.40ghz.. 512gb ram.. pentium 4.. and internet explorer