Occasionally when you remove a program that shares a .DLL with other applications, the shared .DLL will incorrectly get removed too. If a .DLL is missing you'll get an error along the lines of "Error opening file - dllName.dll missing." Also .DLL files can be corrupted due to the effects of virus or even accidental deletion.

Step2 What is .DLL file? DLL stands for Dynamic-link library. A DLL can be used by several applications at the same time. Some DLLs are provided with the Windows operating system and available for any Windows application. Most DLLs are written for a particular piece of software and are required when executing the application. They are a necessary part of many programs and can easily be damaged or deleted.
The location the .DLL file should be downloaded to depends on what operating system is being used.

* Vista - C:\Windows\System32 or sometimes in a sub-folder of C:\Documents and Settings
* Win XP - C:\Windows\System32
* 95/98/Me - C:\Windows\System
* Win NT / 2000 - C:\WINNT\System32

You may have to restart the computer for the new .DLL to be registered correctly. On XP and Vista sometimes going to Start > Run > then type regsvr32 filename.dll then click OK and your .DLL will be successfully installed. Note: "filename.dll" should be replaced by the specific name of the .DLL being installed.

Step3There are thousands of .DLL files which can be downloaded for free from the Internet. Simply download the file and then place it in the correct location depending on your operating system.

Download link: http://www.dll-downloads.com/