I need Help. with two problems on Xp sys

The first one is: every time I turn on my pc, this comes up. RUNDLL: “error” loading C:/windows/system32/iernonce.dll
What is that? and how can I fix it? Please help!
The second is this: When I’ve try to update my windows system this “error: code comes up. )x8DDD0004 What is that? and how can I fix them. Please Help!

I will apreciate it so much, if you can help.