Avoiding the document handler, DocsOpen

My company uses the document handling system DocsOpen by PCDocs. Whenever I try to close an excel workbook that is saved locally (ie, not on the network) via vb, an annoying DocsOpen msgbox appears asking me if i want to save the wkbk, even if I specify close without saving changes. This DocsOpen is so integrated with excel that even if I quit excel I still am forced to deal with the msgbox.

Any ideas how I can simply close a wkbk without the "Do you want to save?" msgbox appearing?

Thanks!