What is it?
Shell Document Object and Control library - shdoclc.dll

What does it do?
Shdoclc.dll (the Shell Document Object and Control library) is a resource-only library that is used by Internet Explorer to store localized items such as menus, dialog boxes, and strings.

Microsoft's information page.

Virus Precautions:
You'll want to keep an eye on this google search for any known viruses. The normal location of this file is C:WindowsSystem32shdoclc.dll


Also .