[EditorBrowsableAttribute(EditorBrowsableState.Advanced)]
protected Dictionary<int, Object> HandleDictionary { get; }

<EditorBrowsableAttribute(EditorBrowsableState.Advanced)> _
Protected ReadOnly Property HandleDictionary As Dictionary(Of Integer, Object)

[EditorBrowsableAttribute(EditorBrowsableState::Advanced)]
protected:
property Dictionary<int, Object^>^ HandleDictionary {
	Dictionary<int, Object^>^ get ();
}

/** @property */
/** @attribute EditorBrowsableAttribute(EditorBrowsableState.Advanced) */
protected Dictionary<int, Object> get_HandleDictionary()

protected function get HandleDictionary () : Dictionary<int, Object>

Do not add/remove items form this collection directly. Use dedicated Handle* functions instead (they are thread-safe).

In rare occasions, your plugin is not utilized by Total Commander but by another .NET-based application, you cannot rely on objects being passed to FindNext(Object, FindData%)/FindClose(Object) being present in this dictionary and object returned by being added to this dictionary. It's because .NET application doesn't need to rely on integer handles - it can store objects itself.