在PowerShell下，用一下命令都可以做到
1.gci HKLM:\Software\Classes -ea 0| ? {$_.PSChildName -match '^\w+\.\w+$' -and (gp "$($_.PSPath)\CLSID" -ea 0)} | ft PSChildName
2.get-wmiobject Win32_COMClass
To see a world in a grain of sand.
And a heaven in a wild flower
Hold infinity in the palm of your hand.
And eternity in an hour
一花一世界
一沙一天堂
掌中握无限
霎那成永恒
