Oxios Hibernate attempts to release as much memory as possible without damaging the internal state of the Windows Mobile device (Pocket PC or Smartphone).

Oxios CloseApps closes down other applications by sending "Close" messages.

WM_HIBERNATE is a window message that is generated by the Windows operating system and sent to an application when system resources are running low. All applications should get the message and handle it by attempting to release as many resources as possible by unloading processes, destroying windows, or freeing up as much local storage as possible without damaging the internal state of the system. Oxios Hibernate sends WM_HIBERNATE to all applications.

Each process started on a Windows Mobile-based Smartphone allocates memory, which cannot be released but is automatically freed when the application process ends. Oxios CloseApps closes down all applications by sending WM_CLOSE messages.