sound blaster audigy ls error

I just installed my old sound blaster audigy ls in my recent computer (recently built it) i did try it's new sound drivers (creative) but i did care for the sound quality from the new drivers so i uninstalled them and install my old oem sound drivers but after rebooting my pc it told me it could find p17res.dll & p17.sys so after having it copy those files from my oem cd it seem to work ok but when i rebooted my pc again i keep getting this error
Also when trying to uninstall my old drivers i get a bsod error:cry:cry:cry