Annoying, isn't it? Unfortunately, this particular message has become
particularly familiar to everyone who has to support Microsoft Office
XP for very long.
It comes from one particular component of Office XP, namely the
Language Bar component that manages the Speech and Handwriting
Recognition features. This component seems to have a minor bug in it
that stops it from shutting down fast enough when the system is shut
down, which brings up the message you mention.
With regard to what you should do about it: well, firstly and most
importantly, the message is harmless, so if you don't want to do
anything about it (or use the Speech and Handwriting Recognition
features), then you can just ignore it, and keep clicking on "End Now"
when the message comes up.
If you don't use those features, then you can uninstall them from your
'Recently, my system has been crashing more often, due to a process or
I found out that this is the "Speech and Handwriting Recognition" part
of Office XP. To de-install it, go to
"Microsoft Office," click on the "Change" button
browse to "Office Shared Features," "Alternative User Input," and
select for Speech and Handwriting Recognition (both) "Not available"
from the drop-down box.
Perform the change and the CiceroUIWndFrame messages disappear. Took
just a second, and you don't even have to restart your system or
insert the XP Office CD.'
If this answer isn't quite what you're looking for, please feel free
to request a clarification.
Hope this helps,
Much the same advice is offered again, here:
Too much time spent supporting Office for clients.
Google search: CiceroUIWndFrame