Outlook caches a lot of data that is read on startup and changed in the UI,
then it may or may not update the registry from the cached information then
or at shutdown. However it doesn't read back registry values after startup.
A lot of configuration information is like that.

--
Ken Slovak
[MVP - Outlook]
http://www.slovaktech.com
Author: Professional Programming Outlook 2007.
Reminder Manager, Extended Reminders, Attachment Options.
http://www.slovaktech.com/products.htm


"JK" wrote in message
...
When user set a signature to default, that time I have to write values to
registry..not during installation. I wonder how it happens when we set a
default signature from Outlook, you open new email..u find the signature.
Microsoft doing the same functionality itself but not letting people to do
it
. :-)