Screen graphics people love scrolling source code whenever somebody is working on a computer.  This appears to be Module1.bas from https://kenai.com/projects/jkatalog but reordered:

Attribute VB_Name = "Module1"
Option Explicit

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' Copyright ©1996-2006 VBnet, Randy Birch, All Rights Reserved.
' Some pages may also contain other copyrights by the author.
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' Distribution: You can freely use this code in your own
'               applications, but you may not reproduce
'               or publish this code on any web site,
'               online service, or distribute as source
'               on any media without express permission.
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Public Const IOCTL_STORAGE_EJECT_MEDIA As Long = &H2D4808
Public Const IOCTL_STORAGE_LOAD_MEDIA As Long = &H2D480C

Public Const DRIVE_REMOVABLE As Long = 2
Public Const DRIVE_CDROM As Long = 5
Public Const INVALID_HANDLE_VALUE As Long = -1&
Public Const GENERIC_READ As Long = &H80000000
Public Const FILE_SHARE_READ As Long = &H1
Public Const FILE_SHARE_WRITE As Long = &H2
Public Const FILE_ANY_ACCESS As Long = &H0
Public Const FILE_READ_ACCESS  As Long = &H1
Public Const FILE_WRITE_ACCESS As Long = &H2
Public Const OPEN_EXISTING As Long = 3
Public Const IOCTL_STORAGE_MEDIA_REMOVAL As Long = &H2D4804

Public Type PREVENT_MEDIA_REMOVAL
   PreventMediaRemoval As Byte
End Type