Debug Notification -13 - Alias Free Notification
This notification returns:
Cmd
An object that contains an aliased region is about to be freed by the debuggee. This can also occur if the underlying memory object is about to be shrunk such that the alias would span memory outside the resultant object.
The alias region must be unmapped before the debugger may execute the debuggee again.
The DBG_C_UnMapAlias command is the proper response to an alias free notification.
If a debugger creates an alias to memory in another debugger, and that memory is itself an alias to the second debugger's debuggee, then the first debugger will not receive an alias free notification when the memory of the second debugger's debuggee is freed. The alias will be freed automatically. The second debugger will receive an alias free notification.