I dont see any direct problems.See if this helps
Try this
http://www.mvps.org/sramesh2k/IEFIX.htm
What IEFix does?
o Registers Urlmon.dll, Mshtml.dll, Actxprxy.dll, Oleaut32.dll, Shell32.dll, Shdocvw.dll
oRefreshes Internet Explorer using IE.INF method
o For Windows 2000/XP: Initiates "SFC /Scannow"
o Repairs two important registry keys which are required to set Internet Explorer as the default browser