Also known as a Dynamic Link Library, .DLL files are executable programs (like software) however, they can not be launched or opened by the user. Although you can't open .DLL files physically they may be executed one of the following ways.
- .DLL files can be executed by software applications. (.exe)
- .DLL files can be executed by another .dll file. (.dll)
If either one of these executions returns the .DLL file as missing, a DLL error will appear and the application may not work. In the event you are missing a .DLL file you can perform a quick dll search or request the dll file easily.