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Question: Sometimes, people will contact help when they want to
access a software program but receive a message about missing a .dll
file. What are DLL files?
Answer: DLL
(Dynamic Link Library) files are basically "support" files for certain
types of software. They are generally (but not always) found in your
Windows System directory.
It
works like this: Let's say a program needs to perform an operation.
Rather than all the coding being built into the program, it uses a
particular DLL file that, with a simple call, can perform the operation
for it. Saves lots of programming time, especially since many of the
common DLL files are already installed with Windows.
People ask about deleting these files. Well, the best advice is not to,
since many of your DLL files are used by more than one program. Going
through and deleting the ones you *think* aren't being used anymore is a
lot like getting under the hood of your car and yanking wires that don't
look important.
If
you're really concerned about stray DLL files, make sure you run
uninstall programs. Most programs include an uninstall program that will
(should) take out all the extra DLL's.
Most of the time if you hit the Start button, Programs, then go to the
program's listing, you can find an uninstall program. You can also click
the Start button, Settings, Control Panel, and open the Add/ Remove
programs icon. A screen will pop-up that can uninstall the software for
you (again, it's not foolproof, but it's better than playing guessing
games with your DLL's).
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