Are you sure your system's clean? At any rate you can get a copy of that file from
this site.
http://www.spywareinfo.com/~merijn/winfiles.php
Merijn is the original author of CWShredder and HijackThis, so it's a trustworthy
source. Make sure you d/l the correct one for ME systems. You need to copy the Rundll32.exe
file into your Windows\System folder.
Blocking Unwanted Parasites with a Hosts File
