Opening DLLs and getting even a single function to work was always a huge pain for me in the past. The process for doing this on windows is very manual and requires someone who is familiar with C++. Now, if you are like me, you probably just search the Internet, looking for the source code of a certain algorithm or library you want to use. I’m sure you are familiar with this situation: “Wow! I just found the perfect algorithm / library for my project! And it’s opensource! Awesome! Oh wait.. compiled as dll.”
If you don’t see your language, it probably means that the open source decompiler back end we’re using (Snowman) does not yet support it. It is a good starting point for people interested in getting involved with open-source software for the IL2CPP runtime. Specifically, you need to decide which of the following scenarios best describes your needs and situation: You want to develop an app using Visual Studio with Xamarin, IntelliSense, Application Insights and HockeyApp support.
Determine the use of the DLL file
DLL files usually run in the background while you use Windows programs. A single DLL file may often have several functions that it can perform, which the programs may access in order to perform that function. Some functions that a DLL file may have include:
- Drawing graphics
- Displaying text
- Managing fonts
- Making calculations
How Can I See The Source Code Of A Dll In Visual Studio?
You can find the Start Menu by going to the Main Menu.Use the Visual Studio tool to do this.Click on the folder above to access that folder.The tool will appear as either “Developer Command Prompt” for VS 2013 or just “Visual Studio Command Prompt” in Visual Studio 2010 if you are using VS 2013 or Visual Studio 2010.Typing ILDASM is prompted when the command prompt is loaded to screen.An ILDASM window will open when prompted.
How Do I See What Classes Are In A Dll?
Each answer takes four marks. (Menu View -> Object Browser) is where you can check your class name. When a dll complete path is selected in the assembly information window, a message will appear. In the project properties, you will notice the assembly.
Find a program that can open a DLL file and follow the steps to open the file
There are a few programs that can open a DLL file. Windows computers already have a registry program where you can register DLL files. Visual Studio or a decompiler are both programs that you can download to read your DLL files, while Visual Studio online lets you look at DLLs without downloading or finding a program ahead of time. Below are four methods you can follow to open a DLL file:
Microsoft Windows 7 and newer Registry
Below are steps that may help you open a DLL file on Windows 7 computers and newer:
- Open the command prompt. You can open the command prompt by going to the Windows Start menu or by holding Windows Key+R and typing “cmd” in the prompt that appears on screen.
- Open the folder with the DLL file. Once you find the folder, hold the Shift key and right-click the folder to open the command prompt directly in that folder.
- Type “regsvr32 [DLL name].dll” and press Enter. This function can add the DLL file to your Windows Registry, helping you access your DLL file. You may use this function to add new DLL files to your computer.
- Type “regsvr32 -u [DLL name].dll” and press Enter. This function can remove a DLL file from the registry. You may use this to remove DLL files that are not behaving properly.
Microsoft Windows Visual Studio
The Microsoft Windows Visual Studio is a program that allows you to view, edit and build code into a DLL file. When you import code into Visual Studio, it may automatically convert the code into the programming language C# even if it was in a different programming language before.
- Download Microsoft Visual Studio. Before you download the program, ensure that your computer meets the requirements to run the program. After you are sure your computer can run the program, run the installer to add it to your computer.
- Open the folder that has the DLL file and select “Export to Project.” You may use another program to view the code and have found something that needs to change. While in another program, you can right-click the DLL file to export it to Visual Studio. This may take the DLL file from the program that you’re using and move it into the Visual Studio.
- Edit the code. Using Visual Studio, you may edit the code to run the functions that you want. You can also use Visual Studio to read the DLL file without editing the code.
Can You Decompile A Dll?
DLL’s like these can only be compiled to machine language and decompiled without any assembly language modifications. Nonetheless, this depends on what language is used. Perhaps there is no way to get a code that resembles the original when it comes to source code, as one might expect. Alternatively, consult p-code decompilers in case you run Visual Basic.
How Do I Find Dll Information?
View the extension properties by right-clicking on an EXE or DLL file in Windows File Explorer and then choosing Properties from the context menu. ExeProperties offers Exe/Dll Info as an extra menu item. To see these extended properties, select this tab.
Can You decompile a DLL into C + +?
This might be impossible or at least very hard. The DLL’s contents don’t depend (a lot) on it being written in C++; it’s all machine code. That code might have been optimized so a lot of information that was present in the original source code is simply gone. That said, here is one article that goes through a lot of material about doing this.
How to Open DLL files?
DLL files are not developed with the intention of opening by the users. This DLL can only be open and read by other dependent DLL or dependent programs.
If you are a programmer and when you compiled any .net source application then assembly like .exe or .dll are created. When we create a windows application or console application then .exe is created. When we create a class library or web application then .dll is created. This assembly (either .exe or .dll) contains Manifest and intermediate language.
You can read the content of the intermediate language of DLL with some tools like DotPeek,ilspy, JetBrains Resharper decompiler,redgates .net reflector,ildasm, DUMPBIN, Dependency Walker, etc which helps to open DLL files and read its content. This intermediate language generally will be in assembly language with ldstr, call, pop, push, ret, Add, SUB, len, msg, MOV, etc code in it.
Exporting the code from a decompiler program to Visual Basic to open DLL file and to edit the resources:
If you are looking forward to editing, manipulating and re-building the DLL file, then you need to follow the upcoming step-wise guide as it is.
- Make a right-click upon the DLL file within the Assembly Explorer in the decompiler program’s window
- A new drop-down list shall load-up, from which you need to select upon ‘Export to Project’
- Wisely choose the export options
- You can even open the DLL file project immediately using Visual Studio or store it up and open at your convenience
- Once the DLL file project has been loaded into Visual Studio, you get to have complete control access to edit, rebuilt and save the DLL as per your need.
The code that has been exported to the Visual Studio will be in C# language, even if the original DLL file was created in a different programming language.
How to decompile PDB to get C # source code?
It certainly doesn’t recover the original code exactly as written, although with symbol names (also stored in the PDB) it often comes close. Look into the source-code of ILSpy. It’s an open source alternative for Reflector. In particular it uses the libraries Mono.Cecil and Mono.Cecil.Pdb. I suspect the latter can help you with what you want to do.
Understanding The Difference Between Deployment Files and Source Code
People often download the pre-compiled deployment packages of mojoPortal and then try to use it in Visual Studio and then they wonder why there is no source code. The pre-compiled deployment files are intended for production deployment, they are pre-compiled and have no C# source code. If you want to work in Visual Studio and do custom development you should get the source code from our source code repository.
What you need to understand is the Visual Studio supports 2 kinds of web projects, Web Application Projects and Web Site Projects. In a Web Site project there is no .csproj file and it treats all files as part of the project, whereas in a Web Application Project there is a .csproj file that lists all the files that are part of the project and other files may exist on disk but are not really part of the project and VS will not try to compile files that are not part of the project. Furthermore when you compile a Web Application Project, all the C# code is compiled into a dll in the /bin folder and the C# source code is not intended to be deployed to production whereas in a Web Site project the C# files are not typically pre-compiled into the /bin folder but are compiled by the ASP.NET runtime into temporary files down below the Windows directory. Another point of note is that in both project types the .aspx files and .ascx files are also compiled into temporary files. Basically you can think of the .aspx and .ascx files as partial classes and the other parts of the partial class are in the code behind, but in Web Application projects the code behind is pre-compiled into the dll in the bin folder so only the .aspx and .ascx parts have to be compiled into temporary files by the ASP.NET runtime.
mojoPortal Web (in mojoPortal source code) is a Web Application Project not a Web Site Project. However what happens often enough is that people try to use our pre-compiled deployment files in Visual Studio and since there is no .csproj file Visual Studio opens it as a Web Site Project and treats all the files as part of the project so if there are any extra C# files in the file system it will treat those as part of the project and try to compile them, so occasionally there may be a stray file there that causes an error when you open the pre-compiled files in Visual Studio but typically we do try to avoid any extra files in the deployment packages so that there will be no error if you open it in VS but really if you want to work with the source code you should use the source code from the repository.
If you then try to “Publish” the project from Visual Studio, and if the publish settings are configured to “pre-compile” then what happens is that it will pre-compile all of the .aspx, .ascx files as a web site and VirtualPathProviders don’t work in pre-compiled web site projects and this breaks the skin because in mojoPortal we use a VirtualPathProvider to make it load the theme.skin file from the skin folder under /Data/Sites/[SiteID]/skins/[skinname] instead of from the /App_Themes folder. You “could” possibly copy the theme.skin file from the skin folder into /App_Themes/default but then you will be limited in your ability to use different theme settings per skin so some skins will be broken and others may work. So it is best not to re-compile and re-publish the mojoPortal release packages because they originated from a web app project not a web site project and they are already compiled and published to create the release/deployment packages.
You can use the source code to create a new program where you can use this source code in the development process of the new program. You can find source code files in Github, Bitbucket, etc.