W
...winston
Assuming your system setup(by you or an administrator) is not preventing installation through executable file the only other requirements/pre-requisites can be found in the kb article.
http://support.microsoft.com/?kbid=931836
: iDo I need administrative rights to install the DST update for Windows XP?
http://support.microsoft.com/?kbid=931836
: iDo I need administrative rights to install the DST update for Windows XP?