How To Fix Iertutil.dll is Missing or Not Found Errors

Download iertutil.zip

Extract iertutil.dll from iertutil.zip. We recommend that you extract iertutil.dll to the installation directory of the program that is requesting iertutil.dll.

If that doesn't work, you will have to extract iertutil.dll to your system directory. By default, this is:
C:\Windows\System (Windows 95/98/Me)
C:\WINNT\System32 (Windows NT/2000)
C:\Windows\System32 (Windows XP, Vista, 7)

If you use a 64-bit version of Windows, you should also place iertutil.dll in
C:\Windows\SysWOW64\

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:

1. Open Windows Start menu and select "Run...".
2. Type CMD and press Enter (or if you use Windows ME, type COMMAND)).
3. Type regsvr32 iertutil.dll and press Enter.

Download iertutil.zip