How to Install the dll file manually?

Please read our disclaimer before installing. (Make a backup copy of the original file)

1. Free Download EqnClass.Dll to your computer.
2. Copy the file to the install directory of the program that missing the dll file.
3. 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\

4. Reboot computer.

If the problem still occurs, please view our install and register DLL Help Section

Dll Files Error Messages