Shell Extensions are in-process COM objects which extends the abilities of Windows operating system. Most shell extensions are automatically installed by the operating system, but there are also many other applications that install additional shell extension components. For example: If you install WinZip on your computer, you’ll see a special WinZip menu when you right-click on a Zip file. This menu is created by adding a shell extension to the system. The ShellExView utility displays the details of shell extensions installed on your computer, and allows you to easily disable and enable each shell extension. ShellExView can be used for solving context-menu problems in Explorer environment.
The ShellExView utility allows you to disable and enable the shell extensions components on your system. In order to disable or enable a shell extension item, select the desired item, and from the File menu (or from the pop-up menu) select the appropriate option – “Enable Selected Items” or “Disable Selected Items”.