thanks
Excuse my english i am french

Hope this answers your question.Redge wrote this in another posts:
# 1st solution
[HOST]
pc0
-connect 192.168.1.100::5500 -noregistry
[HOST]
pc1
-connect 192.168.1.101::5501 -noregistry
[HOST]
pc2
-connect 192.168.1.102::5502 -noregistry
NAT router config
pc0 external 5500 --> internal 192.168.1.100 port 5500
pc1 external 5501 --> internal 192.168.1.101 port 5501
pc2 external 5502 --> internal 192.168.1.102 port 5502
and your vncviewer -listen port
Start... Run...
pc0 "%programfiles%\UltraVNC\vncviewer.exe" -listen 5500
pc1 "%programfiles%\UltraVNC\vncviewer.exe" -listen 5501
pc2 "%programfiles%\UltraVNC\vncviewer.exe" -listen 5502
# 2nd solution for viewers
[HOST]
pc0
-connect 192.168.1.100::5500 -noregistry
[HOST]
pc1
-connect 192.168.1.101::5501 -noregistry
[HOST]
pc2
-connect 192.168.1.102::5502 -noregistry