Hi Folks, I have developed a dx application, now i want to add the functionality for detecting compatible directx version when running on user machine. Also, how can i check for the d3dx dll's i used for my app? If the dll's are not present on the user machine, how can i prompt user for downloading it and provide link? I am using April 2006 sdk, is the dx runtime is only requirement for applications to run or i have to check for dll's like d3dx_30.dll? Please elaborate the procedure? Thanks