File extension .DL_
Full Name | Developer | Category |
---|---|---|
Microsoft Windows DLL Backup Format | Microsoft | Compressed Files |
The DL_ file is a compressed dynamic-link library (DLL) file - a kind of executable file format developed by Microsoft and used for the Windows operating system. Typically, it is used to store and deploy shared code or resources among applications and device drivers, allowing efficient reuse of data while reducing disk space usage. It can be opened with Windows Compressed Folder Utility (available on Microsoft Windows operating systems since Windows 98) and WinZIP, among others.
The full form of DL_ is a ‘disk package library’, a computer file format related to a compressed ZIP archive but engineered to contain DLL files. This format is used to reduce the overall size of a DLL package. This becomes particularly important when dealing with a larger system deployment, where some of the component files must be downloaded over a slow connection. The DL_ files compress all of the components of the installation process into a single download service, reducing the amount of time taken to package, compress, and deploy the component files.
Similar File Extensions
There are other file extensions that may be used for compressed DLL files, such as DLL, OCX, DRV, and CPL.
Programs for WINDOWS system
After installing the required software, the operating system will usually automatically associate an unknown file type (in this case .DL_) with the new application. If this does not happen, we can help the system a bit by selecting the software for it, which it should always use to open files with the .DL_ extension.
When choosing the software we can select the system to use this software every time.
Remember!
Using it for the first time it is good to check whether the .DL_ file opened in the application can be read by us and opens in a way that allows us to use it. If everything is in order, select this option the next time you open a file with the .DL_ extension. However, if the file has not opened correctly, we have to look for a different software, with which we can open files with the .DL_ extension. Select a different software from our list and install it on your computer. After the software is installed, repeat inspection openings of a .DL_ file. Sometimes you have to repeat the operation several times.
Other instructions
If none of the programs listed by us to work with the .DL_ file has not meet your expectations, you can try searching other websites. But remember to avoid downloading programs "that can open any file". These applications not only have very limited functionality, but may also expose you to expense tens of dollars when purchasing a license.
In the vast majority of cases you will find the program dedicated to support the .DL_ file, or any other file format. In addition, there is a chance that it will be a free program, and its functionality (concerning the .DL_ file) will be extended to the maximum.
It is also good to check
- if the .DL_ file has no errors
- or if it has been copied (or downloaded by the browser) thoroughly
Author’s guidelines

Mr B. Adam
Author of the guidelines / Founder of FileExtension.info
New technologies enthusiast, helping to solve problems with the files.
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