Used by a package to register itself as a high priority command handler. This allows the package to see all comands. You can use this to simplify the environment by hiding parts of the command structure. You can get an instance of this interface from the SVsRegisterPriorityCommandTarget (SID_SVsRegisterPriorityCommandTarget) service.
Assembly: Microsoft.VisualStudio.Shell.Interop (in Microsoft.VisualStudio.Shell.Interop.dll)