Today i got phonecall from my coworker that she accidentally use Open With dialog to associate .exe file types with Internet Explorer, causing every program to open in that chosen application. Windows provides no option to reset the .exe file associations, and you’ll have to do this manually. I tried to open regedit or command prompt, but this caused Internet explorer to open every time when a program was launched.
So i googled and found help from sevenforums comments:
Here is a copy of the default registry entries to restore EXE files. After you download the REG file to your desktop, just double click on it to merge it to the registry. You may need to logoff and logon, or restart the computer to apply.
Hope this helps,
Shawn
Thanks to Brink/Shawn :)