DLL


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DLL

(networking)

DLL

(library)

DLL

(3)
Dial Long Line equipment.

DLL

(1) See data link layer.

(2) (Dynamic Link Library) An executable program module in Windows that performs one or more functions at runtime. There are a huge number of DLLs that make up the Windows OS. A DLL is not launched by the user; it is called for by an executable program or by another DLL. Only one instance of the DLL is required in memory as its routines can be shared by all running applications (see re-entrant code).

DLLs can perform a simple function such as drawing a 3D border around a dialog box, or they can be as large as a full-blown language system, such as one of the Visual Basic runtime modules (see VBRUNxxx.DLL).

DLLs Can Cause Bloat
In order to limit the total number of files in the Windows repository, a Windows DLL often contains many routines. Even if an application requires only one of them, the entire DLL must be called into memory. It may be difficult, too time consuming or downright impossible for application developers to write their own equivalent routines, and they therefore use the Windows DLLs that Microsoft makes available.

For Applications Too
Some applications have a huge cadre of functions, some of which are rarely used. Therefore, developers can break their application into several DLLs, and only those functions called for by the user need be brought into memory. Application DLLs can also be sharable.

The Unix equivalent of a DLL is a "shared library." Prior to Mac OS X, which is Unix based, the DLL equivalents in the Mac were called "extensions."

Need a DLL?
To replace a corrupted DLL or find a missing one, visit www.aFreeDLL.com. See DLL hell.
References in periodicals archive ?
But start talking about DLLs, IRQs and other alphabet-soup terms, and we're left looking for help.
True Circuits develops and markets a broad range of industry leading PLLs, DLLs and other mixed-signal hard macros for ICs for the semiconductor, systems and electronics industries.
DLL is member of the global CE100 network and the Circle Economy network in the Netherlands.
DLL files contain code so they can be used to install malware on computers.
The integrated PHY and DLL, licensed as a hard macro, reduces our integration effort and improves our time to market.
DLL, a global provider of asset based financial solutions, is a fully-owned subsidiary of the Rabobank Group.
The DLL has all JAUS message and component classes, as well as many helper classes.
ARM(R) Artisan(R) DDR2 I/O technology enables a reliable, high-performance interface for signal integrity and noise reduction, and the DLL IP from True Circuits, Inc.
DLL concludes that remanufa c tured pre-owned equipment product lines may even enhance financial pe r formance.
Finding innovative ways to increase the speed and ease of doing business with DLL has always been a top priority," says Bob Hunter, Senior Vice President US Sales Office Technology at DLL.
iVivity selected Ingot's IP4001 DDR1/DDR2 Intelligent Memory Manager (IMM) IP Core along with the companion Ingot IP4010 DDR SDRAM PHY with DLL.
In the fast-changing world, DLL is also focusing on developing innovative and profitable solutions for its partners, including circular economy concepts in which products are reused, recycled or refurbished, also known as Lifecycle Asset Management (LCAM).