Is there a way to say that the virtual app has no Network access ?
Why ... because some applications automatically check for updates etc. but when i use this apps in public i dont wont that they make network conections and leave traces ... ( work pc pc from friends etc)
Generally, this would be the job of the user's firewall or changing a setting in the application itself to tell it to not check for updates. I understand the scenario you gave in which you wouldn't be able to control the firewall, but you could modify the application before using it on a computer other than your own.
If you think this is a function that Cameyo should have, please post your suggestion here for consideration.