# Startup

If you have the network module activated the product starts slightly differently to the stand-alone version. If you do not have the network module activated then skip this section. The first step in the start-up for a network user is a simple logon screen: ▪Select your username from the list and enter the password given to you by the FluidFlow administrator. ▪Select from the available modules the calculation functionality you will need. In the above we have selected the Liquid, Gas, and Two-Phase Calculations modules. ▪Press the OK button and the application will start. The next user to log on will see the following Logon dialog. Notice that there are now less modules available as Liquid, Gas and Two-Phase modules were taken by the Administrator who logged on first.