60 Installed Software
MX3-CE Reference Guide E-EQ-MX3CERG-G-ARC
Software Load
The software loaded on the MX3-CE computer consists of Windows CE 3.0 OS, hardware-
specific OEM Adaptation Layer, device drivers, MS Pocket Internet Explorer browser and
utilities.
The software supported by the MX3-CE is summarized below:
Operating System
• Microsoft CE, which is Windows CE 3.0 with MFC support.
Radio Drivers
• Only one radio is installed in the MX3-CE at any one time. The 2.4GHz type of PC
radio card resident on the MX3-CE determines the type of radio driver running on the
MX3-CE.
Note: Please contact your LXE representative to get access to CAB files as they are released by
LXE.
Intel Persistent Memory Folder (IPSM)
Persistent memory creates a virtual drive in free flash memory, which appears in Windows
Explorer or ActiveSync Explorer as the folder IPSM (Intel Persistent Storage Manager). Any files
stored in this folder are preserved during a reboot (warm or cold boot) or power fail, even during
installation of a new system image. Normally, installed applications go into DRAM, which is lost
on battery fail or cold boot.
The Windows CE application path includes the directories \IPSM and \IPSM\bin. Thus, any
applications or DLLs put in these folders will execute directly from these directories, without
specifying any additional path information.
This method does not, however, work for device drivers, since they are loaded before persistent
storage starts up. As a result, the auto-launch utility (LAUNCH.EXE) uses registry settings to load
CAB files from persistent storage into DRAM, and to reload those same CAB files if it detects
that the drivers have disappeared from DRAM (e.g. during battery fail). The detail of how the
auto-launch utility works and how to configure it for your own applications are in a separate app
note.
Saving files to the persistent memory folder can be extremely slow - developers should not create
applications that save files to this directory. Due to the wear on the flash memory chips, which
also contain the Windows CE operating system, this usage will invalidate the LXE computer
warranty.
See Also: PSMFORMAT.EXE
