Just to expand on what Dennis posted, you can find the documentation in the LabVIEW help. Here's how to navigate to it:
LabVIEW 6
1. Go to Contents & Index from the Help menu.
2. Under the contents window, navigate to Networking in LabVIEW->Properties and Methods
LabVIEW 6.1
1. Go to VI, Function, & How to Help from the Help menu.
2. Under the contents window, navigate to Programmatically Controlling VIs->VI Server Properties and Methods