Endnote: The specified Word library can not be unloaded because it is in use

When my friend opened word, an error "The specified Word library can not be unloaded because it is in use" appeared. He told me it was working before.

This error occurs because the Endnote is disable in Word. The solution is given in http://www.endnote.com/support/faqs/CWYW/faq48.asp.

Word 2007:

1. Click on the Office icon and select Word "Options."
2. Click on "Add-ins."
3. Change the "Manage" options to "Disabled Items."
4. Click Go.
5. Highlight any EndNote item(s) and click "Enable."
6. Click OK.


Word 2000/2002/2003:

1. Click the "Help" menu and select "About Microsoft Office Word."
2. Click "Disabled Items".
3. Highlight any EndNote item(s) and click "Enable".
4. Click Close and OK.