监视网络连接与断开，特殊情况下可能有点用，两个VBS脚本均来自微软官网

监视网络连接：

代码如下:

strComputer = "."

Set objWMIService = GetObject("winmgmts:\\" & strComputer & "\root\wmi")

Set colMonitoredEvents = objWMIService.ExecNotificationQuery _

("Select * from MSNdis_StatusMediaConnect")

Do While True

Set strLatestEvent = colMonitoredEvents.NextEvent

Wscript.Echo "A network connection has been made:"

WScript.Echo strLatestEvent.InstanceName, Now

Wscript.Echo

Loop

监视网络断开：

代码如下:

strComputer = "."

Set objWMIService = GetObject("winmgmts:\\" & strComputer & "\root\wmi")

Set colMonitoredEvents = objWMIService.ExecNotificationQuery("Select * from MSNdis_StatusMediaDisconnect")

Do While True

Set strLatestEvent = colMonitoredEvents.NextEvent

Wscript.Echo "A network connection has been lost:"

WScript.Echo strLatestEvent.InstanceName, Now

Loop

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