I have just had this problem and had to fix it myself as no one seemed to know anything about it(not computer experts). The first thing i did is click the start menu and right click the internet explorer icon. then scroll down to internet properties and click. then cick onto programmes and manage add-ons click on the kiwi toolbar and highlight the disable box then look for AGSearchHook class and disable this too.exit menu and go into advanced and click the reset icon.(i found this part enables me to use the internet again ) restart the computer and remove uninstall messenger completely( i tried to re-install but the message came back on ) all of the above will restore internet access but you then have to use an alternative chat such as face book or skype i use skype its free and works like messenger. i have no idea how to uninstall the kiwi if i get the info i will pass it on.

PLEASE NOTE all the above actions need to be performed in every account on the computer i found this out when my son could not access his log in and had to do it all again in his account.

im no computer whizz so sorry if this does not work but it did the trick for mine.

Yes, I have the same problem only I cant updat from the internet because it don`t work I can`t start the explorer than I get the same thing and aftherwards he gives me a runtime error??? I still can`t rid of it my other computer works at linux so I can`t update from there???