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Edit .NET assembly and recompile

I'm in a really bad situation. I lost my source code and my customer needs to change a little bit in the application. Think of edit an assembly for an example: Test.dll then add a code line and finally recompile it

So my question is: - Is it possible to do that? - If it's possible, what is the good tool to edit an assembly and then recompile it?

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Bac Clunky Avatar asked Dec 10 '12 07:12

Bac Clunky


3 Answers

Yes, get ILSpy, it has the ability to save an assembly to disk with a .csproj and everything. This makes it easy to open in Visual Studio and recompile.

ILSpy is free and open source.

Save Code

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Jacob Stanley Avatar answered Oct 22 '22 09:10

Jacob Stanley


Exporting & recompiling might not be possible for large applications with many assembies, so I'd suggest a different approach:

The most comfortable way to go might be to use Reflexil in combination with .NET Reflector (not free) or JustDecompile from Telerik (very free). I did this a few times and had the best result with JustDecompile - even if I'd prefer ILSpy over JustDecompile at any other time.

"Now, how"? you might ask: Here's a small tutorial from the guys at Telerik.

(look at the topic "How can I inject C# code in an assembly?")


UPDATE

You should definitely look at the new kid on the block: dnSpy

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Waescher Avatar answered Oct 22 '22 09:10

Waescher


Reflector is the most well known tool for disassembling .net Executables. Another tool is Dis#.

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Remko Avatar answered Oct 22 '22 09:10

Remko