Sims 2 patch w/out disk 4

so i have sims 2 on my computer and it keeps crashing from what i read i need to download the patch from EA but when i try that it asks for disk 4 which i no longer have. do you know a way around this or another way to keep it from crashing on vista?

Disc 4 is needed to pass the disc check (to ensure a legal original disc). I haven’t yet switched to Vista, but if EA released a patch to correct the problem, then that’s the way to go.