1. Download the required .dll file from http://dllyes.com/
2. Copy that .dll file into the application or game folder, or you can copy it into the Windows system folder. The path to the system folder for 32-bit version of Windows XP, Vista, 7, 8 is C:\Windows\System32, for 64-bit version is C:\Windows\syswow64 .
3. If you are rewriting the existing .dll file we recommend you to back up the original file.
4. In case if you copied a .dll file into the Windows system folder you can run the command line and execute command resrv32 “name.dll”, to do this, hit the start button or click on start menu and in the Run field type cmd and press Enter, after that type regsvr32 “name.dll” and press Enter.
5. Reboot your computer.