DeleteVolumeMountPoint(DriveLetter+":\\");

hDevice - To retrieve a handle to a volume, call CreateFile with the lpFileName parameter set to a string of the following form: \\.\DriveLetter:. DriveLetter is not case-sensitive and does not require a colon after it.

static extern TODO DriveLetter(TODO);

Declare Function DriveLetter Lib "kernel32.dll" (TODO) As TODO

System.Management.ManagementObject("Win32_LogicalDisk.DeviceID=" & DriveLetter & ":")

Private Function GetVolumeSerial(ByVal DriveLetter As String) As String

    Dim ValidDriveLetters As String = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"

    If ValidDriveLetters.IndexOf(DriveLetter) <> -1 Then

    If DriveLetter.Length = 1 Then

        Dim Disk As New System.Management.ManagementObject("Win32_LogicalDisk.DeviceID=""" & DriveLetter & ":""")

     string driveLetter = Path.GetPathRoot(path).Replace("\\", "");

     QueryDosDevice(driveLetter, pathInformation, 250);

public static string[] QueryDevice(string driveLetter=null)

    uint len = QueryDosDevice(driveLetter, buffer, (uint)buffer.Length);