Juniper Allegro CE Owner's Manual page 224

If you create an installation package (cab file), you need to consider
the build number. In general, you should use as wide a range as
practical when specifying installation constraints, or consider
imposing no limitations at all.
Internal Storage Device Name
Allegro CE's internal (non-removable) non-volatile storage is named
C_Drive.
PC Card Storage Device Name
In the English version of the Allegro CE operation system, the PC
Card Storage area is named Storage Card. This is the default name for
ATA PC Cards in Windows CE 3.0.
It is recommended to avoid hard-coding this name, as it has changed
over time, and differs from one language to another. For Allegro cross
platform compatibility, look for the name of the PC storage card in the
registry at:
(HKEY_LOCAL_MACHINE\Drivers\PCMCIA\ATADisk\Folder).
If this folder does not exist, or has no value, the default name is
Storage Card.
Allegro Specific APIs
There are a number of Application Program Interfaces (APIs) that are
only available on the Allegro CE. These APIs are used for accessing
special or unique features of the Allegro CE platform. These API's
include accessing the serial number, or getting information from the
Allegro expansion pod.
To use these APIs, include AllegroAPI.h in the source code and
instruct your linker to use AllegroAPI.lib. For Visual Studio .NET you
need to p/invoke (platform invoke) these functions for the Allegro CE
eVC++ SDK, which contains a file named AllegroAPI.h that describes
these APIs.
▲ ▲ ▲ ▲ ▲
Selecting the Platform
When selecting a platform in Windows CE 3.0 the development tools,
select ALLEGRO_CE as your platform. When using Windows CE
.NET, select ALLEGROCE41 as your platform when in development
tools.
Page 6-8 Software Developer's Guide