i want to upgrade my wlc which is currently running Software Version 126.96.36.199 to the latest and uptodate version i downloaded some files from the cisco ios download but the controller wont take any of the files in the zip file.(Standard-MIBS-Cisco-WLC4400-4100-2000-021907).Can somebody share the software or show me where to get the proper software.
You are very close, just look further down the page (make sure you read the release notes carefully to determine what version you want to upgrade to) Look for the matching release notes and Version software like below;
From this link;
Also have a look at this thread which has some WLC 3.2 to 4.0 details;
Hope this helps!