Click Start then Run and type in « regsvr32 name_of_dll.Download the file and copy it to: « C:WindowsSystem32 ».Par contre How do I install a DLL file on my computer? Add a missing. Make sure to overwrite any existing files (but make a backup copy of the original file). On a 64bit version of Windows, the default folder for 32bit DLL-files is C:WindowsSysWOW64, and for 64bit dll-files C:WindowsSystem32. Toutefois, Where do I put DLL files in Windows 7?Ĭ:WindowsSystem32 (Windows XP, Vista, 7, 8, 8.1, 10). DLL file to your C:WindowsSysWOW64 folder. DLL file to your C:WindowsSystem32 folder.