Is there a way to know how many viewers are connected to the same vncserver ?

[THEIS Jean-Marie 139708]

Hi

If your VNC server is on a Linux system , 
another solution is this simple Bash line :

netstat -atn | grep ":$ClientPortNumber.*[0-9][0-9]*[ 	][
]*ESTABLISHED"

On one line only ( sorry if this command line is cut because of email ) 
Where $ClientPortNumber is 5900 , 5901 , 5902 depending on how you use
VNC
Note that the empty field between [ and ] contains a space and also a
tab

Not very elegant but ...

Jean-Marie