cthelper error

[pete26671]

please help every time i restart my pc i get an error message Cthelper mfc application can any 1 tell me what this is and how do i correct it.
also yesterday i was using my pc and all was fine but today i come home switch it on and now have no sound whatsoever but my speaker system seem to be working fine i am at a loss as to what is wrong?????

 

[cybertech]

Hi pete26671, Welcome to TSG!!

cthelper is installed with Creative Labs Soundblaster Devices. Try reinstalling the software.