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Editorial Team
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Asked: 2026-05-17T03:05:09+00:00

Is there a way for me to insert a resource into the manifest of

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Is there a way for me to insert a resource into the manifest of another assembly?

I’ve been experimenting with MSBuild and ILMerge but apparently a resouce assembly created by the Assembly Linker can not be merged wtih ILMerge, looks like ILMerge cant do a resource only merge.

al /out:Resources.dll /embed:Test.txt,Resources.Test

ilmerge just yields an error

ILMerge.Merge: Could not load assembly from the location 'Resources.dll'
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1 Answer

  1. Editorial Team

    Okay, I actually had the answer, my ILMerge version must have been buggy…

    I took the C# class template .cs file and compiled that in the simplest way

    > csc /target:library Class1.cs

    I then use the Assembly Linker part of the Windows SDK to create a trivial resource assembly (quicker)

    > al /out:TextFile1.dll /embed:TextFile1.txt

    This last part failed with a stupid null reference exception, last time I tried this. But just now it worked like a charm.

    > ilmerge /out:Merged.dll Class1.dll TextFile1.dll

    You can verify the result using ildasm

    > ildasm /text Merged.dll
...
.mresource public TextFile1.txt
{
  // Offset: 0x00000000 Length: 0x00000003
}

    …and that’s it!

    I use this to inject stuff into assemblies post-build as part of the build process. e.g. SVN log information. So that I can track a binary to a specific revision and person.

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