Extract Canon CIW Extension.dll from .zip. We recommend that you extract Canon CIW Extension.dll to the installation directory of the program that is requesting Canon CIW Extension.dll.
If that doesn't work, you will have to extract Canon CIW Extension.dll to your system directory. By default, this is:
C:WindowsSystem (Windows 95/98/Me)
C:WINNTSystem32 (Windows NT/2000)
C:WindowsSystem32 (Windows XP, Vista)
C:WindowsSystem32 (Windows 7/8/2008r2/10/11)
C:WindowsSysWOW64 (Windows 7/8/2008r2/10/11)
If you use a 64-bit version of Windows, you should also place Canon CIW Extension.dll in C:WindowsSysWOW64
Make sure overwrite any existing files (but make a backup copy of the original file).
Reboot your computer.
If the problem still occurs, try the following:
Open Windows Start menu and select "Run...".
Type CMD and press Enter (or if you use Windows ME, type COMMAND)).
Type regsvr32 Canon CIW Extension.dll and press Enter.
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Comment If your system prompts "not found Canon CIW Extension.dll" or "Canon CIW Extension.dll missing" or "Canon CIW Extension.dll error", please don't worry. After downloading the DLL file on this page using Internet express or Xunlei, decompress it with WinRAR and copy it directly to the original directory to solve the error prompt! I hope the Canon CIW Extension.dll we provide will help you!
