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Win32_DMAChannel vbscript sample code

The foundations for Manageability in Windows is Windows Management Instrumentation (WMI; formerly WBEM) and WMI extensions for Windows Driver Model (WDM).

ActiveXperts Network Monitor provides the ability to build monitor check routines based on WMI. ActiveXperts has collected more than a hundred WMI samples. You can use these samples as a base for new check routines you can write yourself. The Win32_DMAChannel WMI class can be used in ActiveXperts Network Monitor to monitor your servers.


The Win32_DMAChannel WMI class represents a direct memory access (DMA) channel on a Windows computer system. DMA is a method of moving data from a device to memory (or vice versa) without the help of the microprocessor. The system board uses a DMA controller to handle a fixed number of channels, each of which can be used by one (and only one) device at a time.

Sample Code

On Error Resume Next
strComputer = "."
Set objWMIService = GetObject("winmgmts:\\" & strComputer & "\root\cimv2")
Set colItems = objWMIService.ExecQuery("Select * from Win32_DMAChannel",,48)
For Each objItem in colItems
    Wscript.Echo "AddressSize: " & objItem.AddressSize
    Wscript.Echo "Availability: " & objItem.Availability
    Wscript.Echo "BurstMode: " & objItem.BurstMode
    Wscript.Echo "ByteMode: " & objItem.ByteMode
    Wscript.Echo "Caption: " & objItem.Caption
    Wscript.Echo "ChannelTiming: " & objItem.ChannelTiming
    Wscript.Echo "CreationClassName: " & objItem.CreationClassName
    Wscript.Echo "CSCreationClassName: " & objItem.CSCreationClassName
    Wscript.Echo "CSName: " & objItem.CSName
    Wscript.Echo "Description: " & objItem.Description
    Wscript.Echo "DMAChannel: " & objItem.DMAChannel
    Wscript.Echo "InstallDate: " & objItem.InstallDate
    Wscript.Echo "MaxTransferSize: " & objItem.MaxTransferSize
    Wscript.Echo "Name: " & objItem.Name
    Wscript.Echo "Port: " & objItem.Port
    Wscript.Echo "Status: " & objItem.Status
    Wscript.Echo "TransferWidths: " & objItem.TransferWidths
    Wscript.Echo "TypeCTiming: " & objItem.TypeCTiming
    Wscript.Echo "WordMode: " & objItem.WordMode