11/8/2023 0 Comments Open source net reflector![]() The code that it decompiles to looks Exactly like the code that I wrote in Visual Studio as you can see in the following image.ĭecompiling to VB also works right out of the box, this tool has what it takes! ![]() ![]() I simply performed the same process as I did with JustDecompile I started ILSpy and opened up my executable but this is where it gets interesting. ![]() You simply grab the binaries or source from the ILSpy website and unzip it wherever you want it! NET Applications! This means that if you don't like what it does or if you have feature suggestions, "you can just" provide the fix yourself! The tool itself is equal to what JustDecompile offers but the installation process is much easier. This one is interesting, ILSpy is an open source assembly browser and decompiler for. There's even a suggestion button where you can submit requests. Showing the source as VB instead of C# shows nothing at all, shouldn't matter if the original code was C# or not.Įven though there are some cons would I recommend you using it? Of course! If you haven't installed it already go ahead and do so! It can only become better if more people support it and give them suggestions.There's a button for creating a project, I expected it to be able to export my binary to a complete VS Solution but it's grayed out and there's no tooltip on why that is so.There are a couple of things that I didn't find straight forward using JustDecompile. We can also select to show the result as IL instead of C# code! The result is quite similar to the original source as you can see in the following image. I've setup a project that has the same variable declarations and the equality check from above and then compiled and opened the executable in JustDecompile. You'll also need to create a Telerik account if you don't already have one which can also be a hassle, but it's free so why not! One thing that I didn't like thought was the installer, generally Telerik's installers are pretty nice, but I don't like being "guided" to install other stuff than what I've asked for.īelow is a screenshot of the installer and as you can see it advices you to install a lot of trials for other Telerik products.Īfter selecting only to install JustDecompile the installation will only take up 36MB. JustDecompile is completely free and available for download over at Teleriks website. I do like the products from Telerik so this one should be quite interesting! The first one that we're looking at is a product from the Just* family created by Telerik. Don't worry, there's both free versions and paid ones out there! Telerik JustDecompile Let's take a look at four of the most common ones on the market. So how do we do this? By using a decompiler!Īs I tend to do this quite often to understand how libraries work that I have no control over, I have tried some different tools for just this cause. Instead what we want to do is something like you can see illustrated below we want to go back from IL to C#! What do you do? One option is to mimic the functionality if the application is not too big and create it from scratch but that is just cumbersome. Imagine that you got a DLL from an old co-worker and the code is long gone but you need to make some changes to the code. When this basic snippet was compiled using LINQPad it generated some IL which you can see below. To me the output is readable but that's just because I have a weird love for IL. Let's consider a basic variable instantiation and an equality check, when this is compiled it will output something partially readable. We know that whenever we want to use this black box we have something behind the curtain that knows how to open it and use it properly (read: CLR). The following image illustrates what happens when we compile something, we put the C# code into a basket and tell the compiler to give us a binary of this which is sort of a black box at the moment. There's no metadata stored after compilation which means that comments and such will not be available in the IL output. The compiler of course does some magic and tweaks the code as much as possible. Compiling C# code "just" translates it into MS IL. There are many reasons to why you might want to decompile an application after it's been compiled. NET Applications Posted by Filip Ekberg on
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