eDrawingsViewer plugin for IE wont install

Hi all
When installing eDrawingsViewer plugin in MS Internet Explorer, Iget this message :
"This installation package could not be opened. Verify that thepackage exists and that you can access it, or contact theapplication vendor to verify that this is a valid Windows Installerpackage."

How can I install the plugin?

Best regards,
Kim Kortermand

SolidworksEdrawings