Problem with plugin installation - Error '429'

Problem with plugin installation - Error '429'

Tried to install the Zoho Microsoft Plugin onto Word 2007 on my Tablet PC running Windows 7 64 bit. At the end of the installation when loading Word an error window popped up headed Microsoft Visual Basic with the text:  Run-time error '429';  ActiveX component can't create object.      –  What do I have to do to fix that?