WMI and Operating Systems
Best practice is to avoid using Windows Vista And Windows 2008 for Network Monitoring of WMI. WMI works well on Windows XP, Windows 2003, and Windows 7, even for larger networks. But with Vista and Window 2008 this is not true. Some tests even indicate that Windows XP and Windows 2003 are up to 70 times faster than Windows 2008 or Vista. In these tests, hardware (CPU, memory) does not strongly affect WMI monitoring performance, nor does virtualization.