Removing "1" from the context menu of Windows Explorer

The following shell extension add "1" to the context menu of Windows Explorer:

Shell Extension Name:	.cpl
Filename:	shell32.dll
Description:	Allgemeine Windows-Shell-DLL
Company:	Microsoft Corporation
Product Name:
File Version:	6.1.7601.17514 (win7sp1_rtm.101119-1850)
CLSID:	{66742402-F9B9-11D1-A202-0000F81FEDEE}

If you want to remove "1" from your Explorer context menu, follow the instructions below:

1. Download and run the ShellExView utility from this Web page.
2. Find the right shell extension according the details specified above.
3. Select this shell extension and press F7 to disable this extension. After you disable this shell extension, "1" won't be displayed in the Explorer context menu.