No more solos

System win98,motherboard asus p5a,cpu amd k6 2 333,problem is essolo1 files keep wanting to use sound drivers,which are onboard rather than plugin sound card installed.I keep getting error message that dos drivers essolo com and sys need to load.I disabled both but tshoot activates in c, auto exect file causing all sorts of stack errors at startup loading pcautodrive detected and essolo1 drivers install.How do I dissable onboard sound.Asus answer is why do you want to.