does any body no where i can get an multi media audio control?

multi media audio control for an iqon computer,i stupidly deleted it, i think it is realtek,ithink i need a new driver,is this correct,please can anybody help me,as i have no sound on my p.c.
product key. jkx98-b6mhr-hwbty-vx9dg-4yw78

i tried to get info from iqon direct but they have gone bust.

jim boylan
May 2008