How often have you opened up your Internet Explorer only to have it crash, close and give you one of the cryptic messages about reporting the error? You’re likely not very interested in reporting an error – you’d rather get your internet up and working again. If you’ve examined the logs of the crash, you can see all sort of gibberish, but look for an indication that it is the “yt.dll” causing the problem. If so, the problem is simple – your Yahoo toolbar is messing up and needs to be fixed.

The YT.dll.err

Computer errors are unbelievably frustrating, but when you can actually fix the problem yourself with minimum amounts of trouble, you’ll feel great and be back to work in no time. In this case, the closing internet explorer window or the cryptic warning messages you’ve been seeing are a sign that it’s time to rework your Yahoo toolbar. You’ll want to start by confirming that it is the Yahoo toolbar giving you trouble.

In the error logs, you’ll know if it’s the Yahoo toolbar by the name of the DLL file associated with it. YT.dll is one of the major support files for the toolbar. If it becomes corrupted or doesn’t work properly, your toolbar won’t work properly.  Never fear, however, it’s simple to resolve this particular problem. You just need to uninstall the Yahoo Toolbar and then reload it so that it’s working correctly again.

Repairing/Removing the Yahoo! Toolbar

To remove the Yahoo Toolbar, you’ll start by going to Start and then Control Panel. From there, click on Add and Remove Programs. In the newest versions of Windows, you’ll go to Programs and Features from the Control Panel.

DLLs are little executable files that contain data that multiple programs can use at once. This saves space on your hard drive because not every program needs to take up space with the same code. Generally, DLLs are very helpful when it comes to the functionality of your PC. However, they can also be used for evil. Gasp!

Some types of spyware use DLLs to do their dirty work, infecting your PC with bad stuff. And with DLLs, you can’t just delete them. They must be deleted and disabled in your system before they are gone for good. So how do we do that?

Safety First

You may have pinpointed the bad DLL that is messing up your system. However, you should still take precautionary measures before disabling and deleting them
Precautionary measures equal: backing up your files (like you’re supposed to do regularly anyway) and creating a System Restore Point. In order to create a point that you can return your system to in case of catastrophe:

1. Click on your Start button and go to All Programs.
2. Open Accessories and then System Tools.
3. Click on System Restore and follow the onscreen instructions.

Step 1: Finding a DLL

The first step to disabling a DLL is to do a search for it on your PC and find the exact path of the DLL.

1. Go to your Start menu and click on Search. In Windows Vista and Windows 7, you can just search from the Start-Menu's Search Field

A DLL or Dynamic Link Library file, is used by Windows and Windows based programs to allow many different levels of interface between the programs and with the user. There are many types of DLL files and multiple programs can share one file.

Any file extension with the .exe ending is an executable file, and should not be messed with under normal operating conditions. Deleting or altering these files will cause your operating system to become unstable, shut down, freeze up, or crash, which gives the blue screen of death.