Hi..Sorry to hear of your problems.
Please contact Reallusion Support using the link below. They will be able to investigate this issue for you and help resolve the problem.
http://www.reallusion.com/CustomerSupport/User/QForm.aspx
In the meantime you may like to try uninstalling WidgetCast and popVideo Converter and try a fresh install. This may solve the problem so is worth a try. :)