D3D11InstallHelper.dll Copyright : Copyright (C) Microsoft Corporation. File Size : 56712 Byte ( 55.38 KB ) File Date : 2013-10-31 How to Install the dll file manually Free Download D3D11InstallHelper.dll to your computer. Copy the file to the install directory of the program that missing the dll file. If that doesn't work. you have to move the dll file to the system directory. (Windows XP, Vista, Windows 7) - C:\Windows\System32 (Windows NT/2000) - C:\WINNT\System32 (Windows 95/98/Me) - C:\Windows\System If you use a 64 bit version of Windows, The System Directory in C:\Windows\SysWOW64\ Reboot computer. Dll Files Error Message There are many different Messages that Dll Error might show u...