I tried to install the February 2010 version of the DirectX SDK today but ran into troubles.
I downloaded the SDK from msdn using IE8, and got the installer started. After a few seconds of the installation progress, I got the error S1010 and the installation was terminated.
After searching around for the error message, I found the solution. Download the SDK using another browser.
I fired up chrome and started the download again, and started the installer.
Guess what, it worked!
Can someone explain this please? 😛
Anyway, I decided to put the solution on this blog in case anyone of you are having the same issues.
More information about this: http://joytek.blogspot.com/2009/11/installing-directx-sdk-error-s1010.html