Enabling Enhanced Messaging Service (EMS) Processing (Compact 2013)
3/26/2014
When the OS boots, it checks the system registry for the following key:
HKEY_CURRENT_USER\Software\Microsoft\SMS\TextShared
This key contains a flag that specifies whether EMS processing is enabled on the device. EMS processing is disabled by default, however, you can enable this support yourself.
EMS is defined in 3GPP Technical Specification 23.040 "Technical realization of Short Message Service (SMS)". It can be obtained from this website http://www.3gpp.org/ftp/Specs/html-info/23040.htm.
To enable EMS processing support:
Register the COM component's GUID by creating the following registry key, and giving it the following name/value pair.
HKEY_CURRENT_USER\Software\Microsoft\SMS\TextShared DWORD : EMSHandlerInstalled = 1