Looking for a sony vaio download driver pcva IR5U download

My excuse if I would be asking about quite a basic subject. I just couldn't find it. I've got a Vaio RS502.
And I reformatted and reinstalled windows a few days ago, and the computer can't find their receiver , which are results now that I can't use my remote controller for the computer. Are there Any drivers for the IR receiver?
A Sony Vaio download driver pcva ir5u? Thanks for now.
