Very old code that I found back in some old repo.

FindConflictingReferences.cs

public class UtilityTest
{
    public void FindConflictingReferences()
    {
        var assemblies = GetAllAssemblies(@"PATH");

        var references = GetReferencesFromAllAssemblies(assemblies);

        var groupsOfConflicts = FindReferencesWithTheSameShortNameButDiffererntFullNames(references);

        foreach (var group in groupsOfConflicts)
        {
            Console.Out.WriteLine("Possible conflicts for {0}:", group.Key);
            foreach (var reference in group)
            {
                Console.Out.WriteLine("{0} references {1}",
                                      reference.Assembly.Name.PadRight(25),
                                      reference.ReferencedAssembly.FullName);
            }
        }
    }

    private IEnumerable<IGrouping<string, Reference>> FindReferencesWithTheSameShortNameButDiffererntFullNames(List<Reference> references)
    {
        return from reference in references
               group reference by reference.ReferencedAssembly.Name
                   into referenceGroup
                   where referenceGroup.ToList().Select(reference => reference.ReferencedAssembly.FullName).Distinct().Count() > 1
                   select referenceGroup;
    }

    private List<Reference> GetReferencesFromAllAssemblies(List<Assembly> assemblies)
    {
        var references = new List<Reference>();
        foreach (var assembly in assemblies)
        {
            foreach (var referencedAssembly in assembly.GetReferencedAssemblies())
            {
                references.Add(new Reference
                {
                    Assembly = assembly.GetName(),
                    ReferencedAssembly = referencedAssembly
                });
            }
        }
        return references;
    }

    private List<Assembly> GetAllAssemblies(string path)
    {
        var files = new List<FileInfo>();
        var directoryToSearch = new DirectoryInfo(path);
        files.AddRange(directoryToSearch.GetFiles("*.dll", SearchOption.AllDirectories));
        files.AddRange(directoryToSearch.GetFiles("*.exe", SearchOption.AllDirectories));
        return files.ConvertAll(file => Assembly.LoadFile(file.FullName));
    }

    private class Reference
    {
        public AssemblyName Assembly { get; set; }
        public AssemblyName ReferencedAssembly { get; set; }
    }

}