Hi,
On trying to start VS2010 I got an error;
visual studio requires internet explorer 6.0 or greater to run properly
But I have IE9 in my system
There is a relative thread: http://social.msdn.microsoft.com/Forums/vstudio/en-US/59aeb0a7-bc0f-4953-aae9-b1f1cb5b3bff/microsoft-visual-basic-2010-express-requires-internet-explorer-6-or-greater-to-run-properly-please
On the other hand, please repair your visual studio.
Thanks
Google/Bing found this: http://allwrong.wordpress.com/2008/04/22/solved-visual-studio-requires-internet-exporer-6/
Maybe it will help.