In today's world, monitoring your children's online activity is something that every parent needs to do. This can be much easier than you might think, as long as you can stay ahead of your children's growing technical expertise. This post will show you how to use the tools built right into Windows Vista to set up a much safer computing experience for your children and give you some peace of mind.
Getting Started
The first thing to do is setup user accounts for each person that uses the computer. Regardless of whether you use Parental Controls or not you should have your computer set up with one Administrator account and Standard User accounts for all other users. Only standard user accounts can be managed by Parental Controls.
Once you have the user accounts setup, bring up the Parental Controls screen. Click on Start and open the Control Panel, in category view select User Accounts and Family Safety if you are using classic view select Parental Controls. If you get a UAC prompt asking for permission, click continue. Select the user account to configure and go to work.
This is the Parental Controls screen

This screen is broken down by category, Web Restrictions, Time Limits, Game, Allow or Block Specific Programs, and my favorite, Activity Reports.
The Activity Reports include information about what Web sites your children visit, how long they're online, how many e-mail messages they get, and information about who they are exchanging messages with, just to name a few. Make sure you have turned this on.
From here simply select each category and select the appropriate settings.
Now that you've seen how to setup an account and enable Parental Controls, here are the details on how you can get the most out of these tools.
Web Restrictions
Whatever rules you specify in Web Restrictions will apply to any and all browsers. If you configure Parental Controls to allow your children to visit only 10 Web sites that you name, they won't be able to visit any others. Likewise, if you set a particular Web site as "blocked," they won't be able to visit that site either. This is the best set up for younger children. For older ones, watch the reports and if you see sites you don't like, simply block them!
You can also restrict file downloads to preventing unwanted malicious software from infecting your system such as malware, adware, and viruses.
You can set general content restrictions by selecting from the generic settings of Low, Medium, High, or Highest.
You can also block specific types of content in categories such as alcohol, bomb-making, drugs, gambling, hate speech, mature content, pornography, sex, tobacco, weapons, Web chat, and Web e-mail.
Time Limits
You can limit the time your children spend online or on the computer. By configuring Time Restrictions, you can designate the hours and the days of the week the child is allowed on the computer. If the child tries to log on at a time not allowed, the logon will fail. If a child is logged on and time limits expire, the child will be automatically logged off.
Games
You can use Parental Controls to manage which games your child can play and how long they spend doing it. You can block all games or specific games based on their ratings. Most computer games have an age and content rating, assigned by the applicable ratings board for your region. You will need to select this in options. You can also set other boundaries based on game content. In addition to games installed on the computer, Parental Controls allows you to set similiar permissions for online gaming content. Because some games may not be rated, you have the option of blocking games with no rating, until you have reviewed them and decided if they are suitable for your children to play.
Block Specific Programs
With Allow and Block Specific Programs, you can disallow a user from running any program you select. These could be third party programs you've installed, including games or instant messaging software, or anything you install and don't want them messing with.
Activity Reports
My personal favorite feature. Using Activity Reports you can see what a user does online and off, including what Web sites they visit, who they instant message, what they download and what programs they access.
Here's what an Activity Report looks like.

Now, I don't advocate spying on your kids, however you are responsible for keeping them safe. Bear in mind that this type of report is probably the same type your company might use to log the activity of users on their computer systems. If you have young children, these activity reports can help you initiate important conversations about personal safety and responsible computing. So take the time to create user accounts for your children and set up basic filtering and monitoring.