In Visual Web Developer 2008, when I select Help | Check for Updates, I get:
 
"The operation could not be completed. The system cannot find the file specified."
 
I understand there ARE no updates yet, anyway, but I'd like to have this functionality working so that I can check for updates from time to time. What is preventing it from working? What do I need to do to fix it?

In Control Panel, when I click the "Windows Update" icon on the left, I get:
 
"Windows cannot find '(null)'. Make sure you typed the name correctly, and then try again..."
 
I assume these two problems are related, but I don't know what to do to remedy the situation...