

It all ends with a cleanup operation of the DirectX installation (removes obsolete files). It features a smart engine that allows it to first analyze the current DirectX installation, retrieve a list of all available files from Microsoft’s servers, compare the data against local items, grab the non-existent updates on your computer and deploy the newest ones.

However, there’s no harm in running DirectX End-User Runtime Web Installer. You can either run the dxdiag utility (from the run command) or use the DirectX Version Checker, an application that aside from verifying the version of the DirectX installation, also informs you about DirectX Debug Levels, DirectShow Filters and DirectInput Devices. If you’re not sure you need a DirectX update, there are two simple ways of checking that. On the downside, it may cause some discomfort to users with an unreliable network connection. The upside of the updater is that it extracts data dynamically, grabbing only the files that your computer lacks in order to be up-to-date. Unlike the latter, the application requires an Internet connection, as it downloads content from Microsoft’s servers, with the advantage of being smaller in size.

DirectX End-User Runtime Web Installer is Microsoft’s updater for the 9.0c and previous versions of DirectX Redistributable.
