"Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG))"
<p>I am trying to use an application, the application is working fine, i am trying to edit the existing item in the application. while clicking the edit am getting the following error,</p>

<pre><code>System.Runtime.InteropServices.COMException was unhandled
  Message="Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG))"
  Source="System.Windows.Forms"
  ErrorCode=-2147221164
  StackTrace:
       at System.Windows.Forms.UnsafeNativeMethods.CoCreateInstance(Guid&amp; clsid, Object punkOuter, Int32 context, Guid&amp; iid)
       at System.Windows.Forms.AxHost.CreateWithoutLicense(Guid clsid)
       at System.Windows.Forms.AxHost.CreateWithLicense(String license, Guid clsid)
       at System.Windows.Forms.AxHost.CreateInstanceCore(Guid clsid)
       at System.Windows.Forms.AxHost.CreateInstance()
       at System.Windows.Forms.AxHost.GetOcxCreate()
       at System.Windows.Forms.AxHost.TransitionUpTo(Int32 state)
       at System.Windows.Forms.AxHost.CreateHandle()
       at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)
       at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)
       at System.Windows.Forms.AxHost.EndInit()
       at bulk_lister.frm_edititem.InitializeComponent() in New Bulklister\new bulklister\bulk_lister\bulk_lister\frm_edititem.designer.cs:line 4248
       at bulk_lister.frm_edititem..ctor(Int32 userid, Int32 intListingId) in New Bulklister\new bulklister\bulk_lister\bulk_lister\frm_edititem.cs:line 187
       at bulk_lister.parent_form.funEditItem_fromrghtclktoolStrip_edititm() in New Bulklister\new bulklister\bulk_lister\bulk_lister\parent_form.cs:line 1313
       at bulk_lister.parent_form.rghtclktoolStrip_edititm_Click(Object sender, EventArgs e) in New Bulklister\new bulklister\bulk_lister\bulk_lister\parent_form.cs:line 1233
       at System.Windows.Forms.ToolStripItem.RaiseEvent(Object key, EventArgs e)
       at System.Windows.Forms.ToolStripButton.OnClick(EventArgs e)
       at System.Windows.Forms.ToolStripItem.HandleClick(EventArgs e)
       at System.Windows.Forms.ToolStripItem.HandleMouseUp(MouseEventArgs e)
       at System.Windows.Forms.ToolStripItem.FireEventInteractive(EventArgs e, ToolStripItemEventType met)
       at System.Windows.Forms.ToolStripItem.FireEvent(EventArgs e, ToolStripItemEventType met)
       at System.Windows.Forms.ToolStrip.OnMouseUp(MouseEventArgs mea)
       at System.Windows.Forms.Control.WmMouseUp(Message&amp; m, MouseButtons button, Int32 clicks)
       at System.Windows.Forms.Control.WndProc(Message&amp; m)
       at System.Windows.Forms.ScrollableControl.WndProc(Message&amp; m)
       at System.Windows.Forms.ToolStrip.WndProc(Message&amp; m)
       at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message&amp; m)
       at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message&amp; m)
       at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
       at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG&amp; msg)
       at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(Int32 dwComponentID, Int32 reason, Int32 pvLoopData)
       at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
       at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
       at System.Windows.Forms.Application.Run(Form mainForm)
       at bulk_lister.Program.Main() inNew Bulklister\new bulklister\bulk_lister\bulk_lister\Program.cs:line 17
       at System.AppDomain._nExecuteAssembly(Assembly assembly, String[] args)
       at System.AppDomain.nExecuteAssembly(Assembly assembly, String[] args)
       at System.Runtime.Hosting.ManifestRunner.Run(Boolean checkAptModel)
       at System.Runtime.Hosting.ManifestRunner.ExecuteAsAssembly()
       at System.Runtime.Hosting.ApplicationActivator.CreateInstance(ActivationContext activationContext, String[] activationCustomData)
       at System.Runtime.Hosting.ApplicationActivator.CreateInstance(ActivationContext activationContext)
       at System.Activator.CreateInstance(ActivationContext activationContext)
       at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssemblyDebugInZone()
       at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
       at System.Threading.ThreadHelper.ThreadStart()
  InnerException: 
</code></pre>

<p>Its with the Dll file that i have used with my application. i have tried to registered this dll file using regsvr32 but i cant make it. </p>

<pre><code>DLL:AxInterop.DHTMLEDLib.dll &amp; Interop.DHTMLEDLib.dll
</code></pre>

<p>Any one have idea on this exception?</p>
