The file ycomp5_3_18_0.dll belongs to Yahoo! Companion 5.3 for Internet Explorer from Yahoo! Inc. Yahoo! Companion is a toolbar created by Yahoo! to enhance the browsing experience of their users. The toolbar includes an anti-spyware tool along with personalization options.
Yahoo! Companion tracks your internet usage but does not use that data to target advertising, nor does it link the data to your user name or computer. Because of this, the toolbar is not considered spyware by most industry experts. If you see an error with this dynamic link library file, you should try cleaning your registry to get your system back up to full speed.
Most dll file errors are caused by a mistake in the registry database. The registry tracks all the files installed on your computer so Windows can find them when it needs them. Mistakes break programs because Windows can’t find files it needs.
ZookaWare PC Cleaner cleans up registry mistakes, hunting down errors in your registry and fixing them for you. When you see a dll file error, run ZookaWare PC Cleaner to fix it. Try a free ZookaWare PC Cleaner scan now to see if your registry needs cleaning.