recently, i was getting IE UDF errors when i was using functions like '_IEAction($object,"click")' in Win8.
i searched forum and saw people that had same issues with me.
i installed xp in virtualbox and tried my script there. woala! it is working.
then i found this solve:
- press ALT in IE to see top menus.
- go to Tools > Compatibility View Settings > open "set Compatibility View for all web sites" (i dont know its english exactly)
if u do that, you can use IE UDF in win7, win8