Internet Explorer 9 (IE 9) RC was released several days ago where you need to download a small installer which will help you to complete download the rest of the file and install it for you. The problem arises when installation process may fail due to internet connection failure that takes place in between.
A full offline installer for Internet Explorer 9 (IE 9) can be a better solution to those who are in the vicinity of bad broadband connection area. The following is the links for the respective 32-bit and 64-bit of Internet Explorer.
Download link: Internet Explorer 9 RC (32 bit) (link removed) | Internet Explorer 9 RC (64 bit) (link removed)