Ciao,
sono talmente avanti che mi rispondo da solo :-)
Al sito
http://www.jankratochvil.net/project/winvnc/ c'č la versione patchata di VNC, o meglio, il file della componente server.
Installate queindi la 4, stoppate il servizio, sovrascrivete il vecchio file .exe della cartella programmi/realvnc/vnc4 con quello scaricato, riavviate et voila'.............servizio in esecuzione senza icona tray.
Resta solo un problema....come impedire agli utenti di levare realvnc dal pannello di controllo? semplice....modificando il registro in modo che non si veda il programma in aggiungi/rimuovi programmi....ecco come fare, vi allego la spiegazione cercata su internet:
HIDE PROGRAM REMOVE FROM INSTALL/REMOVE CONTROL PANEL
Well it's prety simpel to remove a program from the "Add/Remove programs" program, to do it (i asume your running Win XP) go start>run and type regedit , now in regedit you have to be super carefull not to delete any thing by acident your you mite realy screw your PC up. any way then you have to go to the directory HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall this is were the add/remove program stors all the information need to uninstall each program, now you need to make a back up of the part of the registry your going to delete befor you delete it to do so you right click on the folder that contains the program you want to remove or "Hide" then select export, then just save that like a normal file. Then at this point you can delete the folder that conrains the information on the program you want to "Hide" at this point you can close regedit and if you go to the Add/Remove programs menu you should notice that the program has gone. Remember that file you saved well this is what it's for, if for some reason you want the program back on the add/remove progams list just doubel click it and press yes and magicly it's back at this point to get ride of it again you would have to delete it via the registry again, you get the idea. ;D
Fatemi sapere, io la trovo una cosa eccezionale per noi sys admin!!!