Hey, I've been using Windows XP for a couple of years now, and am currently running Windows XP SP3. My PC is used by all the members of my family, each for his own needs. But the problem is that, with so many people using it, it is vulnerable against virus attacks and the likes of it. I've tried securing it, but without any success. I use only two user accounts, one is my own personal one and the other for the rest of the family. But I have Administrator access granted to both the users, since some of my family members use applications which require Administrator access. But this is a big disadvantage where applications are constantly being installed and uninstalled thereby leading to nasty stuff. I was just wondering if there is a way to set certain applications to run with Administrator privileges. For example, I use Mozilla Thunderbird, but I rarely logon to my user account, instead I use the same account that the rest of my family uses. I use the 'Run As' command to access my own mailbox. This is the basic idea. But the rest of my family members wouldn't like wanting to do this to open their applications repeatedly. Hence, I want to set certain applications to run default with Admininstrator privileges in an account with Limited privileges. Is this possible ?