I've killed the pc. need to find a wininet.dll file.

I have a Compaq Presario 1200 laptop. belongs to nephew. I installed adaware from this site. When we ran it it showed a couple of viruses. Quarranteened them and then deleted as I was taught. Didn't realize i was getting rid of important file. I have windows xp on the pc. The error message I am getting is: Explorer.exe unable to locate component. Failed to start because "wininet.dll was not found. Reinstalling application may fix the problem. I have tried to reinstall windows xp. that did not work. When the pc boots up it takes me to the autumn desktop with no icons, no start button, no nothing. Can you direct me in how to fix. Can't face nephew til I do.

 

I remembered that if you hit F8 while restarting you can boot from cd. Trying this to see if it works and maybe repairs the goof I made.

 

Using the f8 key while restarting worked. I was able to reinstall Windows XP.