This problem is being discussed here;
There's no need to flood these forums with the same problem.
I feel like the only one out there with this problem. I need some help. I installed IE 7 and then whenever i went to a service that required the internet like aim and aim email, it would say "unknown handler" as the title and it says "unable to find an application to handle the protocol "http" of the hyperlink you selected" It wants you to type in the path of the application to handle it, etc. etc. I never had this before so i knew it was from ie 7 or Firefox 2, which I'm certain it isn't. I uninstalled IE7 and rebooted. Then when I typed something in the address bar of IE6 and hit enter, it said, "This file does not have a program associated with it performing this action. Create an association in the folder options control panel." This happened to all websites and even the Google toolbar.
I though, oh well I'll just use Firefox until I figure out why this is happening. At least i fixed the AIM problem. WRONG! The box was still there showing off its ability to make me screeeeem. I had to hold my arm back from punching the screen, and I bet you would too. Mo problems, no solutions, Please, if you or anyone you know might know how to fix all this, I will be so happy. also, do you think its Firefox, i don't think so because I'm typing with it now and its underlining spelling errors, its so cool and everything that it couldn't be, could it.