Opening a third party tool window from my visual studio extension.

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C#

Visual-Studio

extension

I created a visual studio extension Tool Window. I need to open a third party Tool Window (from a vendor) in my Tool Windo. This third party Tool Window is currently a menu item under View. Is there any other way to open the third party tool window or can you offer any suggestions? Is there any other way to simulate a click on the third party menu (which opens up the tool window) programatically?

What I have tried:

I did manage to find the GUID of the third party tool Window in registery but and  it opens up the Visual Studio output window for some reason. The other GUID's I found are for the menu item of the third party tool window. They dont work using below code.

<pre>   IVsUIShell vsUIShell = (IVsUIShell)Package.GetGlobalService(typeof(SVsUIShell));
                Guid guid = new Guid("{667E76E81-EE4A-22D0-AE2E-00A0450FFF55}");
              
                IVsWindowFrame windowFrame;
                Application.Current.Dispatcher.Invoke(DispatcherPriority.Background,
                                         new Action(() =>
                                         {
                                             int result = vsUIShell.FindToolWindow((uint)__VSFINDTOOLWIN.FTW_fFindFirst, ref guid, out windowFrame);   // Find MyToolWindow
                                             if (result != VSConstants.S_OK)
                                                 result = vsUIShell.FindToolWindow((uint)__VSFINDTOOLWIN.FTW_fForceCreate, ref guid, out windowFrame); // Crate MyToolWindow if not found
                                             if (result == VSConstants.S_OK)                                                                           // Show MyToolWindow
                                                 ErrorHandler.ThrowOnFailure(windowFrame.Show());
                                         }
                        ));