1. A computer-implemented method for creating a client graphical program which accesses capabilities of a server graphical program, wherein the method operates in a computer including a display screen and a user input device, the method comprising: displaying on the screen an open reference node in response to user input; specifying access information to the server graphical program, wherein said access information is provided to said open reference node; wherein said open reference node is operable to provide a reference to the server graphical program; displaying on the screen a call node in response to user input, wherein said call node is operable to call the server graphical program; connecting said open reference node to said call node in response to user input, wherein said open reference node is operable to provide said reference to the server graphical program to said call node; wherein said call node receives said reference to the server graphical program, wherein said call node is operable to call the server graphical program during execution of the client graphical program.