Windows DLL files are very important for the Windows OS to work and they also determine the working of other programs that customise your Windows. Dynamic Link Library (DLL) files are the types of files that provide instructions to other programs on how to call upon certain things. Therefore, multiple software can share such DLL files, even simultaneously. In spite of being in the same format as an.exe file,
DLL files are not directly executable like .exe files. DLL file extensions can be: .dll (Dynamic Link Library),.OCX (ActiveX Controls),.CPL (Control Panel),.DRV (Device Drivers).
Working
When in use, DLL files are divided into sections. This makes the work of DLL files easier and faster. Each section is installed in the main program at run time. As each section is different and independent; load time is faster and is only done when the functionality of the said file is required. This ability also makes
upgrades easier to apply without affecting other sections. For example, you have a dictionary program
and new words are added every month, so for this, all you have to do is update it; without having to install a whole other program for it.
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