Win32:Dialui-Dll

my AVAST has detected this virus: WIN32:dialui-dll. I repair the corrupted file With AVAST, and the program avast say me the repair is succesfull, but when I run again the AVAST, it detect again the same virus at the same place. somebody can help me ? somebody can explain to me the procedure to destroy this virus?

Start your PC in safe mode and let Avast delete the Virus or rename it and test it here:
http://www.kaspersky.com/remoteviruschk.html

try disableing ur System Restore if u have windows Me/Xp. This is because this feature enableds by default to restore the files on your computer in case they become damaged. If a virus, worm, or Trojan infects a computer, System Restore may back up the virus, worm, or Trojan on the computer.
hope this helps

thanks for your helps, but a tried your different solutions , but nothing change, I have put this virus in quarantain a hope is enough