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Hi All,

In my Application, I have about 600 binaries viz., COM DLL, Win32 Dll, OCX & .Net Dll's, but I need to identify the .NetDll's among them, In this context let me know, what is the distinguishing feature of .Net Dll's/Assemblies compared to other Dll's ?

For Example we are able to identify COM Dll's by presence of following attribute viz., (InProcServer) DllRegisterServer, but I wasn't able to similarly figure out, .NetDll/Assemblies.
Since, I am new to .Net , I need some assitance in resolving the above issue.


VS 2008 IDE , Window 7 O/S,(.Net 4.5)

With Regards,
Posted 27-Mar-13 19:21pm
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Solution 1

Try to open all DLLs with Reflection. When it fails, it's not a .NET DLL. This is exactly what I did in such situation, it works.

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Solution 2

Non programmatically you can right click the dll & select properties to open properties dialog. In the version tab if you see Assembly Version under Item name listbox then it's a managed dll. You can also use Assembly class to programmatically determine whether a given dll is managed or not.
bool IsManaged(string path)
        return true;
    catch(BadImageFormatException e)
        // Code to print the error
    return false;


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