See Using the samples for help on compiling, setting up the debugger, and running the sample (either an exe or dll).
Open the solution using Visual Studio 2005.
Build the solution to make the 'DynamicDisplayHUD' class library.
You will need to use this command in an application with a MapControl and a ToolbarControl.
Add both commands to the ToolbarControl. The commands can be found in the '.NET Samples' category with the names 'Dynamic HUD' and 'Toggle dynamic mode'.
Run the application and add and click the 'Toggle dynamic mode' command in order to switch into dynamic mode. Then click 'Dynamic HUD' in order to add the HUD to the map.
Use the rotation tool in order to rotate the map and notice as the HUD changes while the map rotates.