AutoCAD .NET :: How To Create Ribbon Tabs That Persist Through Workspace Changes

I've followed a few examples and am able to create a new tab on the Ribbon, with panels and buttons, that appears when my DLL is loaded. However, it doesn't persist through workspace changes. I've read that this is due to my use of AdWindows.dll and my current code, as opposed to AcCui.dll, which would modify a CUIx file (that I don't know much about) to make persistent changes.

Here is a sample of my current code.
 
public class Commands : Autodesk.AutoCAD.Runtime.IExtensionApplication{public void Initialize(){Application.Idle += callback_Idle;}private void callback_Idle(Object sender, EventArgs e){CreateRibbon();Application.Idle -= callback_Idle;}private void CreateRibbon(){RibbonControl mainAcadRibbon = ComponentManager.Ribbon;if (mainAcadRibbon != null){RibbonTab rTab = mainAcadRibbon.FindTab("Tab Name");if (rTab != null){mainAcadRibbon.Tabs.Remove(rTab);}rTab = new RibbonTab();rTab.Title = [code].......