Allowing WMI through the Windows Firewall of a Vista or Server 2008 computer

You must allow WMI traffic through the firewall of the monitored application server. The following procedure walks you through allowing WMI through the Windows Firewall.
To allow WMI traffic through the Windows Firewall:
1. Log on to the computer you want to monitor with an administrator account.
2. Navigate to Start > Control Panel > Security Center. You need to switch to the Classic View of the Control Panel to use this navigation path.
3. Click Windows Firewall in the left navigation pane.
4. Click Allow a program through Windows Firewall in the left navigation pane.
5. Check Windows Management Instumentation (WMI), and then click OK.