WMI 获取与物理驱动器路径相关的驱动器号，错过 CDROM

Question

我正在运行以下 WMI 脚本来获取系统上驱动器号和物理驱动器之间的关联，但由于某种原因，它忽略了 CDROM/DVD-ROM。谁能告诉我如何获得这些？

ComputerName = "."
Set wmiServices = GetObject _
    ("winmgmts:{impersonationLevel=Impersonate}!//" & ComputerName)
Set wmiDiskDrives = wmiServices.ExecQuery _
    ("SELECT DeviceID FROM Win32_DiskDrive")

For Each wmiDiskDrive In wmiDiskDrives
    strEscapedDeviceID = _
        Replace(wmiDiskDrive.DeviceID, "\", "\\", 1, -1, vbTextCompare)
    Set wmiDiskPartitions = wmiServices.ExecQuery _
        ("ASSOCIATORS OF {Win32_DiskDrive.DeviceID=""" & _
            strEscapedDeviceID & """} WHERE " & _
                "AssocClass = Win32_DiskDriveToDiskPartition")

    For Each wmiDiskPartition In wmiDiskPartitions
        Set wmiLogicalDisks = wmiServices.ExecQuery _
            ("ASSOCIATORS OF {Win32_DiskPartition.DeviceID=""" & _
                wmiDiskPartition.DeviceID & """} WHERE " & _
                    "AssocClass = Win32_LogicalDiskToPartition")

        For Each wmiLogicalDisk In wmiLogicalDisks
            WScript.Echo wmiLogicalDisk.DeviceID & " = " & wmiDiskDrive.DeviceID
        Next
    Next
Next

Answer 1

考虑到目前所有的 cmets，这里有一个脚本，它添加了列出 CD-Rom 驱动器的功能。

ComputerName = "."

Set dictDrives = CreateObject("Scripting.Dictionary")
Set listDriveLetters = CreateObject("System.Collections.ArrayList")

Set wmiServices = GetObject _
    ("winmgmts:{impersonationLevel=Impersonate}!//" & ComputerName)
Set wmiDiskDrives = wmiServices.ExecQuery _
    ("SELECT DeviceID FROM Win32_DiskDrive")

For Each wmiDiskDrive In wmiDiskDrives
    strEscapedDeviceID = Replace(wmiDiskDrive.DeviceID, "\", "\\", 1, -1, vbTextCompare)
    Set wmiDiskPartitions = wmiServices.ExecQuery _
        ("ASSOCIATORS OF {Win32_DiskDrive.DeviceID=""" & _
            strEscapedDeviceID & """} WHERE " & _
                "AssocClass = Win32_DiskDriveToDiskPartition")

    For Each wmiDiskPartition In wmiDiskPartitions
        Set wmiLogicalDisks = wmiServices.ExecQuery _
            ("ASSOCIATORS OF {Win32_DiskPartition.DeviceID=""" & _
                wmiDiskPartition.DeviceID & """} WHERE " & _
                    "AssocClass = Win32_LogicalDiskToPartition")

        For Each wmiLogicalDisk In wmiLogicalDisks
            listDriveLetters.Add wmiLogicalDisk.DeviceID
            dictDrives.Add wmiLogicalDisk.DeviceID, wmiDiskDrive.DeviceID
        Next
    Next
Next

Set wmiCDROMDrives = wmiServices.ExecQuery _
    ("Select DeviceID, Drive, MediaLoaded from Win32_CDROMDrive")

For Each wmiCDROMDrive in wmiCDROMDrives
    If wmiCDROMDrive.MediaLoaded Then          ' Only show drives with inserted media
        listDriveLetters.Add wmiCDROMDrive.Drive
        dictDrives.Add wmiCDROMDrive.Drive, wmiCDROMDrive.DeviceID
    End If
Next

listDriveLetters.Sort                          ' List the drives in alphabetical order

For Each strDriveLetter in listDriveLetters
    WScript.Echo strDriveLetter & " = " & dictDrives.Item(strDriveLetter)
Next

Answer 2

我认为您需要使用Win32_CDROMDrive WMI 类来访问CD-ROM 信息。您上面的代码正在寻找 Win32_DiskDrive 类中的物理驱动器，它不包括 CD_ROM

您可以添加额外的行来获取类似的数据 - 但由于 CD-ROM 不具有您当前代码所具有的分区特征，所以不一样

ComputerName = "."
Set wmiServices = GetObject _
                  ("winmgmts:{impersonationLevel=Impersonate}!//" & ComputerName)
Set wmiDiskDrives = wmiServices.ExecQuery _
                    ("SELECT * FROM Win32_CDROMDrive")
For Each wmiDiskDrive In wmiDiskDrives
    MsgBox wmiDiskDrive.drive & "=" & wmiDiskDrive.DeviceID
Next

相反，我认为这个不同的 VBS 可能做你想做的事 - 可能部分，因为我认为分区信息与你无关。

vbs 版本

Dim objFSO
Dim colDrives
Dim strOut
Dim strArray

Set objFSO = CreateObject("Scripting.FileSystemObject")
Set colDrives = objFSO.Drives
strArray = Array("Unknown", "Removable", "Fixed", "Network", "CD-ROM", "RAM Disk")
On Error Resume Next
'File system errors for virtual drives
For Each objDrive In colDrives
    strOut = "Drive letter: " & objDrive.DriveLetter & vbNewLine
    strOut = strOut & ("Drive type: " & strArray(objDrive.DriveType) & vbNewLine)
    strOut = strOut & ("File system: " & objDrive.FileSystem & vbNewLine)
    strOut = strOut & ("Path: " & objDrive.Path)
    wscript.echo strOut
Next
On Error GoTo 0

vba版本

Sub Test()
Dim objFSO As Object
Dim colDrives As Object
Dim strOut As String
Set objFSO = CreateObject("Scripting.FileSystemObject")
Set colDrives = objFSO.Drives
On Error Resume Next
'File system errors for virtual drives
For Each objDrive In colDrives
    strOut = "Drive letter: " & objDrive.DriveLetter & vbNewLine
    strOut = strOut & ("Drive type: " & Choose(objDrive.DriveType + 1, "Unknown", "Removable", "Fixed", "Network", "CD-ROM", "RAM Disk") & vbNewLine)
    strOut = strOut & ("File system: " & objDrive.FileSystem & vbNewLine)
    strOut = strOut & ("Path: " & objDrive.Path)
    MsgBox strOut
Next
On Error GoTo 0
End Sub