All depends on the format that the label printer requires.
Most likely, it needs a specific protocol, which WW wont support by default. It may be possible in the L32E, but would require a lot of work.
I suggest speaking to Software Toolbox, they may have something that will do just what you want.
Wonderware will print to a default printer easily. I'm betting you must size the window accordingly to fit. The drivers are on the wonderware computer.