I need to iterate collections of COM + / ActiveX objects with interop using latebound in C #. Right now my need is to iterate through the collection of ActiveX objects COMAdmin.COMAdminCatalogCollection , return of method GetCollection("Applications") of component COMAdmin.COMAdminCatalog . But at the moment it is a POC that will be used with other internal development COM + / ActiveX components, and so I need to develop this solution using late bound. How should I box the object object to be iterable?

COMPlus.cs

public abstract class COMPlus
{
    public object COMObject { get; private set; }
    public System.Type COMObjectType { get; private set; }

    protected COMPlus(string progId)
    {
        this.COMObject = System.Activator.CreateInstance(System.Type.GetTypeFromProgID(progId));
        this.COMObjectType = this.COMObject.GetType();
    }

    protected COMPlus(object comObject, string progId)
    {
        this.COMObject = comObject;
        this.COMObjectType = System.Type.GetTypeFromProgID(progId);
    }
}

COMAdminCatalog.cs

public class COMAdminCatalog : COMPlus
{
    public COMAdminCatalog() : base("COMAdmin.COMAdminCatalog") { }
    public COMAdminCatalog(object comObject) : base(comObject, "COMAdmin.COMAdminCatalog") { }

    public void Connect(string serverAddress)
    {

    }

    public COMAdminCatalogCollection GetCollection(string collectionName)
    {
        return new COMAdminCatalogCollection(
            base.COMObjectType.InvokeMember("GetCollection",
                System.Reflection.BindingFlags.InvokeMethod,
                null,
                base.COMObject,
                new object[] { (object)collectionName }));
    }
}

COMAdminCatalogCollection.cs

public class COMAdminCatalogCollection : COMPlus
{
    public COMAdminCatalogCollection() : base("COMAdmin.COMAdminCatalog") { }
    public COMAdminCatalogCollection(object comObject) : base(comObject, "COMAdmin.COMAdminCatalog") { }

    public void Populate()
    {
        base.COMObjectType.InvokeMember("Populate",
            System.Reflection.BindingFlags.InvokeMethod,
            null,
            base.COMObject, null);
    }
}

Toolbox.cs

public static class Toolbox
{
    public static void CreateApp(string appName, string serverAddress = null)
    {
        COMAdminCatalog comAdminCatalog = new Interop.COMAdmin.COMAdminCatalog();
        COMAdminCatalogCollection comAdminCatalogCollection;

        if (!String.IsNullOrEmpty(serverAddress))
        {
            comAdminCatalog.Connect(serverAddress);
        }

        comAdminCatalogCollection = comAdminCatalog.GetCollection("Applications");

        comAdminCatalogCollection.Populate();

        // aqui deve começar a brincadeira iterando a coleção de aplicações pra verificar se a aplicação solicitada já existe ou não.
    }
}