Activation Error

Hey, Im trying to activate my studfent edition of Solid Works. Im running Vista 64 bit and everytime i try to activate my product i get the same error. After clicking next to activate via internet this message appears "Error  creating instance of MSXML2::DOMDocument" the header of the window that  pops up is "swactwiz." Ive also tried activating the product through  the manual steps and receive the same error. Does anyone know how to fix this?
SolidworksEducator Student