Hey Bruce,
I want to use then in a non-console application, namely a MS Office Add-in. Is this possible?
Yes. If you can execute code then you can integrate with LimeLM and TurboActivate. Whether it's a console app, a GUI app, a plugin, or any other type of program.
Will I have to do anything different from what the provided documentation already says?
Nope. The example code is all GUI apps, but just extract the TurboActivate class or header files (depending on the programming language you're using - e.g. TurboActivate.cs for C#) and integrate it with your plugin.
And if you have any questions feel free to ask.