It is usually a read-only file, which means that many applications can access the file at the same time without any problems. It is a package that contains important code or libraries for reference and used by the program.

Please remember to mark the replies as answers if they help and unmark them if they provide no help, this will help others who are looking for solutions to the same or similar problem. The full form of DLL is Dynamic Link Library. There are other reasons too, the above is the tip of the iceberg. DLLs help operating systems and programs run faster, use memory efficiently and take up less disk Space is saved in memory because the files arent loaded along.

Each program can use the functionality that is contained in this DLL to implement an Open dialog box.

Alternatively, you can also use Command Prompt to run the reg DLL command to register a DLL file. For example, in Windows operating systems, the Comdlg32 DLL performs common dialog box related functions. You will receive a confirmation message once the DLL file has been successfully registered. Other things, consistency in that all projects use the same build DLL. A DLL is a library that contains code and data that can be used by more than one program at the same time. To the code but have rules on how to change it. Sometimes a developer for one of many reasons does not want their code shown (we could get into disassembling arguments here too but not going too), place it into a DLL project (or better known as a class project).

For the moment all I know is C# so I give this custom control in C# to the VB.NET developer, they in turn add it to the solution and use simply use it.Įxample using the same logic in a Windows Forms project Suppose you had a VB.NET Windows forms project that needed a custom control. The boxes represent projects that will be built to DLL and the non-boxes projects are test console projects. They can be split up where say (using the image below of one of my WCF solutions) JsonLibrary is compiled into a DLL that suppies specific functionality (customĬonverters mostly) that the main service will use and also other solutions can use. One look at a DLL file, you have a Visual Studio solution that is made up of several projects.

What is a dll file used for