You can tweak the SPB Mobile Shell so that when you press the SMS and it will link it to the VITO SMS-Chat Application. Vito SMS-Chat is a popular sms software use by Window Mobile Users.
Go to HKLM\Software\Spb Software House 2\Spb Mobile Shell\Menu\Root\Messaging
Change the String in Text to the following depending on where you install the SMSChat into.
Device
in the string write "\Program Files\VITO\SMS-Chat\SMSChat.exe"
in the string write "\Program Files\VITO\SMS-Chat\SMSChat.exe"




