By default, the Host property holds nothing. The Host property returns the object being hosted by the NAVHost control. Use the AssemblyLocation, AssemblyQualifiedName or Create method to create and host a specified type. The hosting control's properties or methods must be called using the Item, SetTemplateDef or Template property. The HostEvent event notifies your application once the hosting control fires an event. The HostEvents property of the NAVHost control specifies the list of events that the control should handle.

There are three ways of loading/creating a manifest/component/assembly as listed:

• AssemblyLocation property, loads the first public, browseable control found in the specified location. If there are more public, browseable controls in the assembly, you can use the AssemblyName or AssemblyQualifiedName property to specify the fully qualified name of the type to be hosted.
• AssemblyQualifiedName property, loads and creates the object based on the assembly-qualified name of the type, which includes the name of the assembly from which this type object was loaded. Sample: "System.Windows.Forms.ListView, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"
• Create(assemblyLocation, assemblyName) method loads the specified file, and creates the giving type.

If succeeded, ( the assembly is loaded and the object is created ), the 

• IsCreated property returns the type of the object being created such as: NAVHostType_exNAVHostControl, if an object of System.Windows.Forms.Control type was created or NAVHostType_exNAVHostObject a generic object was created.
• AssemblyLocation property returns the location of the loaded file that contains the manifest/component/assembly. Sample: "C:\Windows\assembly\GAC_MSIL\System.Windows.Forms\2.0.0.0__b77a5c561934e089\System.Windows.Forms.dll"
• AssemblyName property returns the fully qualified name of the type, including its namespace but not its assembly. Sample: "System.Windows.Forms.ScrollableControl"
• AssemblyQualifiedName property gets the assembly-qualified name of the type, which includes the name of the assembly from which this type object was loaded. Sample: "System.Windows.Forms.ScrollableControl, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" 

The following samples show how you can call hosting control's properties or methods:

• The Host.Item("GetType().Name").Value gets the type of the hosting control. 
• The Host.Item("GetType().BaseType().Name").Value property gets the type of the base of the hosting control. 
• The Host.Item("GetType().IsCOMObject()").Value, property indicates if the hosting control is /COM object or a/NET assembly.
• The Host.Item("GetType().GUID()").Value.AsString, returns the GUID of the hosting control.