Revert "Add some wmi code example from network"

This reverts commit 02d7973888841d7e594c7b396abc6ee427a8d485.
Revert "Revert "Add some wmi code example from network""

This reverts commit 9fff3ba866df1745990fbff3965efd23ca6188c7.
Revert "Revert "Revert "Add some wmi code example from network"""

This reverts commit 437c61d569b0dba77157592094baf5d009b40c67.