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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Using ILDASM to determine the .NET Framework version an Assembly/DLL requires (via StackOverflow)

Posted by jpluimers on 2013/07/11

Josh Stodola wrote a nice answer on the Determine .NET Framework version for dll – Stack Overflow question for using ILDASM to show the required .NET Framework/CLR version for an assembly.

From that, I wrote this tiny batch file:

ildasm.exe %1 /metadata[=MDHEADER] /text /noil | find "Metadata section:"

It gives output like this:

ildasm.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\System.XML.dll /metadata[=MDHEADER] /text /noil | find "Metadata section:"
// Metadata section: 0x424a5342, version: 1.1, extra: 0, version len: 12, version: v4.0.30319

The cool thing is that older ILDASM versions work on assemblies requiring newer .NET Frameworks/CLRs.

So it is relatively future proof.

–jeroen

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