Date:2013-10-25
Safety:Kaspersky McAfee Noton BitDefender AVG

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AC990Sum.dll

·Go to the download page

Using the zip or rar file
1.Download AC990Sum.dll
2.Extract AC990Sum.dll from .zip. We recommend that you extract AC990Sum.dll to the installation directory of the program that is requesting AC990Sum.dll.
3.If that doesn't work, you will have to extract AC990Sum.dll to your system directory. By default, this is:
C:\Windows\System32 (Windows XP, Vista, 7, 8)
C:\WINNT\System32 (Windows NT/2000)
C:\Windows\System (Windows 95/98/Me)
4.If you use a 64-bit version of Windows, you should also place AC990Sum.dll in C:\Windows\SysWOW64\
5.Make sure overwrite any existing files (but make a backup copy of the original file).
6.Reboot your computer.
7.If the problem still occurs, try the following:
8.Open Windows Start menu and select "Run...".
9.Type CMD and press Enter (or if you use Windows ME, type COMMAND)).
10.Type regsvr32 AC990Sum.dll and press Enter.