Accessing a game in another windows account.

[Beest]

I've downloaded and started playing world of tanks ( thread on the game here), and mi kids would like to play too, when they try to run it from their accounts it says they do not have permission ( I'll get the exact error message). They can't download it in their accounts as they need admin rights, my account is admin and they are users.

Does anyone know if there is something simple I have to do to allow the software to run in their accounts, all kinds of programs run in all the accounts once downloaded in only one.