DLL file extension

The table below provides useful information about the .dll file extension. It answers questions such as:

• What is the .dll file?
• What program do I need to open a .dll file?
• How can the .dll file be opened, edited or printed?
• How can I convert .dll files to another format?

We hope you find this page helpful and a valuable resource!

1 extension(s) and 0 alias(es) found in database

✅ Windows Dynamic Linked Llibrary

.dll

Description:
DLL file is a Windows Dynamic Linked Library. A DLL is a file of code containing functions that can be called from other executable code (either an application or another DLL). Programmers use DLLs to provide code that they can reuse and to parcel out distinct jobs. Unlike an executable (EXE) file, a DLL cannot be directly run. DLLs must be called from other code that is already executing.

DLL format description

Category: Application files

Application: -

Mime-type: application/x-msdownload

Magic number: -

Magic string: -

Sample: -

DLL aliases:

-

DLL related links:

-

DLL related extensions:

.acm

Microsoft Audio Compression Manager Codec

.cpl

Control Panel Item

.drv

Windows Device Driver

.lib

Visual C++ Import Library

.ocx

ActiveX Custom Control

.plg

Aston Shell Plug-in

.pbd

Sybase PowerBuilder Runtime Library

.ax

DirectShow Filter Plugin

.hif

Autodesk AutoCAD Heidi Information File

.hdi

Autodesk AutoCAD Heidi Device Interface

Other types of files may also use the .dll file extension.

🚫 The .dll file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

🔴 Can't open a .dll file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows cannot open this file:

example.dll

To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .dll file association, check the FAQ.

🔴 Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

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