If you are using the built in SendObject command then you have no control over
this. It will use whatever Email client has been set as the default MAPI client
in Windows.
If you are automating a messaging library then the message will always be sent
with that library (assuming it is installed on the PC). So if you know all the
PCs have both Outlook and Outlook Express installed then you can automate the
Outlook library and that will always send the message with Outlook even if
Outlook Express is the users default MAPI client.
I'm not automating a messaging library
what i mean is that user will open a selected email application (outlokk or
outlook express )
and not the default MAPI client
can it be done?