Interface not registered

Symptoms:

Attempts to open the ePublisher Style Designer result in a crash log similar to the following:

• Application: WebWorks ePublisher Designer 2014.1.1065.0
  OSVersion: Microsoft Windows NT 6.1.7601 Service Pack 1
  Culture: English (United States)
  OS Locale: English
  
  -------------------------------------
  Exception: System.Runtime.InteropServices.COMException Interface not registered (Exception from HRESULT: 0x80040155)
  
     at Accessibility.IAccessible.get_accParent()
     at System.Windows.Forms.AccessibleObject.get_Parent()
     at System.Windows.Forms.Control.ControlAccessibleObject.get_Parent()
     at Infragistics.Win.UltraControlBase.UltraControlAccessibleObject.GetChildControlAccessibleObject(Int32 index)
     at Infragistics.Win.UltraControlBase.UltraControlAccessibleObject.GetChild(Int32 index)
     at Infragistics.Win.UltraWinExplorerBar.UltraExplorerBar.ExplorerBarAccessibleObject.GetChild(Int32 index)
     at Infragistics.Win.UltraWinExplorerBar.UltraExplorerBar.GetAccessibleIndex(UltraExplorerBarGroup group)
     at Infragistics.Win.UltraWinExplorerBar.UltraExplorerBar.set_ActiveGroup(UltraExplorerBarGroup value)
     at WebWorks.Publish.UserInterface.Controls.RuleSetControl.DisplayRuleType(RuleType type)
     at WebWorks.Publish.UserInterface.Controls.RuleSetControl..ctor()
     at WebWorks.Publish.UserInterface.Controls.RuleSetDesigner.InitializeComponent()
     at WebWorks.Publish.UserInterface.Controls.RuleSetDesigner..ctor(PreviewControlRegistry previewControlRegistry)
     at WebWorks.Publish.UserInterface.Commands.StyleDesignerCommands.DisplayStyleDesigner()
     at WebWorks.Publish.UserInterface.Commands.StyleDesignerCommands.Execute(ICommand command)
     at WebWorks.Common.CommandManager.Command.Execute()
     at WebWorks.Common.InfragisticsNA.Components.UltraToolbarCommandManager.ToolClick(Object sender, ToolClickEventArgs e)
     at Infragistics.Win.UltraWinToolbars.UltraToolbarsManager.OnToolClick(ToolClickEventArgs e)
     at Infragistics.Win.UltraWinToolbars.UltraToolbarsManager.FireEvent(ToolbarEventIds id, EventArgs e)
     at Infragistics.Win.UltraWinToolbars.ToolBase.OnToolClick()
     at Infragistics.Win.UltraWinToolbars.ButtonToolUIElement.DoClickProcessing(MouseEventArgs e)
     at Infragistics.Win.UltraWinToolbars.ButtonToolUIElement.OnMouseUp(MouseEventArgs e)
     at Infragistics.Win.ControlUIElementBase.ProcessMouseUpHelper(Object sender, MouseEventArgs e)
     at Infragistics.Win.ControlUIElementBase.ProcessMouseUp(Object sender, MouseEventArgs e)
     at System.Windows.Forms.Control.OnMouseUp(MouseEventArgs e)
     at Infragistics.Win.UltraWinToolbars.UltraToolbarsDockArea.OnMouseUp(MouseEventArgs e)
     at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
     at System.Windows.Forms.Control.WndProc(Message& m)
     at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
     at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
     at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

Issue:

Windows system DLLs must be re-registered.

Solution:

Re-register all 32-bit DLLs on 64-bit Windows:

1. Click 'Start' and search for 'cmd'.
2. Right click on 'cmd.exe' and select 'Run As Administrator'.
3. Change to the Windows system directory with:

   • cd %Windir%\SysWoW64\

4. Re-register all DLLs with:

   • for %v in ( *.dll ) do regsvr32 /s %v

5. Reboot (if necessary).