Zoho Office plugin troubles

I wasnt sure where to put this, so i put it here, hope its right.

I signed up to Zoho after a friend was raving about how great it is, however ive run into a problem using the Office Plugin. I tried to uninstall the plugin as i was doing some software upgrades, but when it was uninstalling it comes up with an error message "Error while deregistering the dll"

How do i fix this, i'd like to be able to use Zoho with Office 2007.