Launch.exe And Persistent Storage; Regedit.exe - Honeywell HX3 User Manual

The registry information needed is under the key HKEY_LOCAL_MACHINE \ Software \ LXE \ Persist, as follows.
The main subkey is any text, and is a description of the file. Then 3 mandatory values are added:
• FileName is the name of the CAB file, with the path (usually \System).
• Installed is a DWORD value of 0, which changes to 1 once auto-launch installs the file.
• FileCheck is the name of a file to look for to determine if the CAB file is installed. This will be the name of one
of the files (with path) installed by the CAB file. Since the CAB file installs into DRAM, when memory is lost this
file is lost, and the CAB file must be reinstalled.
There are three optional fields that may be added:
1. Order is used to force a sequence of events. Order=0 is first, and Order=99 is last. Two items which have the
same order will be installed in the same pass, but not in a predictable sequence.
2. Delay is used to add a delay after the item is loaded, before the next is loaded. The delay is given in seconds,
and defaults to 0 if not specified. If the install fails (or the file to be installed is not found), the delay does not
occur.
3. PCMCIA is used to indicate that the file (usually a CAB file) being loaded is a radio driver, and the PCMCIA
slots should be started after this file is loaded. By default, the PCMCIA slots are off on powerup, to prevent
the "Unidentified PCMCIA Slot" dialog from appearing. Once the drivers are loaded, the slot can be turned
on. The value in the PCMCIA field is a DWORD, representing the number of seconds to wait after installing
the CAB file, but before activating the slot (a latency to allow the thread loading the driver to finish installation).
The default value of 0 means the slot is not powered on. The default values for the default radio drivers (listed
below) is 1, meaning one second elapses between the CAB file loading and the slot powering up.
The auto-launch process proceeds as follows:
• The launch utility opens the registry database and reads the list of CAB files to auto-launch.
• First it looks for FileName to see if the CAB file is present. If not, the registry entry is ignored. If it is present,
and the Installed flag is not set, auto-launch makes a copy of the CAB file (since it gets deleted by installation),
and runs the Microsoft utility WCELOAD to install it.
• If the Installed flag is set, auto-launch looks for the FileCheck file. If it is present, the CAB file is installed, and
that registry entry is complete. If the FileCheck file is not present, memory has been lost, and the utility calls
WCELOAD to reinstall the CAB file.
• Then, the whole process repeats for the next entry in the registry, until all registry entries are analyzed.
• To force execution every time (for example, for AUTOEXEC.BAT), use a FileCheck of "dummy", which will never
be found, forcing the item to execute.
• For persist keys specifying .EXE or .BAT files, the executing process is started, and then Launch will continue,
leaving the loading process to run independently. For other persist keys (including .CAB files), Launch will wait
for the loading process to complete before continuing. This is important, for example, to ensure that a .CAB file
is installed before the .EXE files from the .CAB file are run.
• Note that the auto-launch process can also launch batch files (*.BAT), executable files (*.EXE), registry setting
files (*.REG), or sound files (*.WAV). The mechanism is the same as listed above, but the appropriate CE
application is called, depending on file type.
Note: Registry entries may vary depending on software revision level and options ordered with the HX3.

LAUNCH.EXE and Persistent Storage

If any of the following directories are created in the System folder, Launch automatically copies all of the files in these
directories to the respective folder on the flash drive:
• AppMgr
• Desktop
• Favorites
• Fonts
• Help
• Programs
• Recent
Note: Files in the Startup folder are executed, but only from System > Startup. They are not copied to another folder.

REGEDIT.EXE

Registry Editor – Use caution when editing the Registry and make a backup copy of the registry before changes are
made.
5 - 10