Date:2013-10-12
Safety:Kaspersky McAfee Noton BitDefender AVG

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ACos.dll

·Go to the download page

Using the zip or rar file
1.Download ACos.dll
2.Extract ACos.dll from .zip. We recommend that you extract ACos.dll to the installation directory of the program that is requesting ACos.dll.
3.If that doesn't work, you will have to extract ACos.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 ACos.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 ACos.dll and press Enter.