Installed Software 61
E-EQ-MX3CERG-G-ARC MX3-CE Reference Guide
Persistent Registry
The registry database, which holds all configuration settings, may be saved to flash. When this has
been done, the registry is detected when the computer reboots and all settings are loaded from the
saved flash version instead of from DRAM (where they are stored while running). This means
battery failure does not lose all settings. It also means that if you have made changes to the
settings, and have not saved them, on reboot your changes are lost. If you reboot using the Boot
icon on the desktop (or WarmBoot from the command line) your registry settings are
automatically saved for you before rebooting.
The utility RegSave is used to save the registry to flash (Start | Run | RegSave). This takes 10-15
seconds to execute, during which the computer is essentially non-responsive to any input or
primary event.
In the rare event that you want to erase saved settings, use the utility RegClear ( c a r e f u l l y ).
Many unusual problems may be caused by having registry settings for a device that has been
removed. When an application is uninstalled, its registry settings are removed; it is then necessary
to save the registry again. If you don't save it, and reboot or get a battery failure, the settings for
the application are still present and it may even try to run, which can crash the system if the
application does not exist. RegClear can help in these situations.
When an application is installed from a CAB file or via ActiveSync, the installer automatically
saves the registry when the installation is completed to be sure the new settings are preserved. Due
to a bug in Microsoft's installer, there is no indication of this situation (no hourglass cursor), so it
appears that the computer has locked up for the 10-15 seconds it takes to save the registry. Be
patient, and control will return.
See Also: LAUNCH.EXE, REGCLEAR.EXE and REGSAVE.EXE
Java Virtual Machine (Optional)
The MX3-CE optionally includes the Insignia Jeode Java virtual machine. This VM supports Sun
Personal Java specification 1.2, with enhancements unique to the Windows CE environment. The
VM is fully integrated with the Pocket Internet Explorer browser, and can also run Java
applications from the Windows CE desktop. Selecting Start | Programs | Java gives a selection
of demo programs using the Java virtual machine.
This installed option is indicated by the appearance of a splash screen with the Java logo on
bootup.
