Is there any way to use emoticons beyond the default drop down list in Office Communicator 2007 R2? Do you have to install them, or can you just type in different codes? Is this even possible, or are the defaults the only ones you can use?
You can't, according to the MSDN forums (and their user Thom Foreman):
There is no way to add emoticons to OC. I have not heard of plans on adding them to future releases. I will put this as a feature request.
Just type them in ^^ (sorry!)