Remotely Downloading and Updating the Code of Win CE device

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I have many Win CE 6/7 based devices in Production site, and I want to update device code i.e .CAB file in all of the devices remotely, same as how Windows/Android phone downloads its updates from somewhere. (Currently I will be doing manually copy-paste the .CAB file in NANDFLASH of each device and installing it.)

for that I need to download my code file (.CAB file which contains .EXEs and .DLLs) from Remote server(say FTP server) into the NANDFLASH of my Win CE device so that newly updated code can be installed in the device.

How can I achieve this Remotely Downloading and Updating the Code of Win CE device using C# and .Net Compact Framework 3.5 on Win CE 6/7 platform?

Any help will be appreciated.

Thanks in advance,

Vijay

Posted 25-Oct-15 21:12pm

Member 10814246

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FranzBe · Answer 1 · 2015-10-25T23:37:00

This is the outline of what I have done:
1) the .dll and .exe files for the CE device are stored in a database table like this

SQL

CREATE TABLE tbl_sys_modulfiles(
    file_name varchar(80) NOT NULL,
    file_size int NULL,
    file_date datetime NULL,
    file_version varchar(50) NULL,
    upload_date datetime NULL,
    file_data varbinary(max) NULL,
 CONSTRAINT tbl_sys_modulfiles_pk PRIMARY KEY CLUSTERED
(
    file_name ASC
)

as the CE client application works with the database anyway, this seems to me like a place where the application has to look anyway.
2) programm start is performed in two steps
2.1) a launcher checks if the versions local on the device are up to date
if not, they are updated from the data in the varbinary column
2.2) after checking and updating the launcher starts the 'real' application.

There are some artikels here on codeproject that descript these sorts of 'self-update'. Worked well for me for some years now with ca. 20 devices