A DLL (dynamic link library) is a small program that is used for a specificpurpose by the main program that calls it. Windows programs like Word and Excelcall and use many DLL files.
Unlike most programs, that link and compile all the program elements they needbefore they begin executing, DLLs are only loaded and used as they are needed.This feature saves RAM space, which is a valuable resource. A DLL file usuallyhas a filetype of '.dll'.
For example, when Microsoft Word is editing a document, the printer DLL file isnot loaded into RAM. If the user decides to print the document, only then doesWord load the printer DLL file.
Don't ever erase a DLL file unless you are positive it isn't needed by your PC.Erasing an important DLL file can make your PC inoperative until the file isreplaced!
If you don't have a DLL you need, your operating system should displaywhich one(s) it can't find, In that case you may be able to find and downloadthem File.