本文汇集了在.NET中得到计算机硬件信息的一些功能。

得到显示器分辨率
Dim X As Short = System.Windows.Forms.Screen.PrimaryScreen.Bounds.Width
Dim Y As Short = System.Windows.Forms.Screen.PrimaryScreen.Bounds.Height
MsgBox("您的显示器分辨率是：" & X & " X " & Y)

得到特殊文件夹的路径
'"Desktop"桌面文件夹路径
MsgBox(Environment.GetFolderPath(Environment.SpecialFolder.DesktopDirectory))
'"Favorites"收藏夹路径
MsgBox(Environment.GetFolderPath(Environment.SpecialFolder.Favorites))
'"Application Data"路径
MsgBox(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData))

'通用写法
'Dim SPEC As String = Environment.GetFolderPath(Environment.SpecialFolder.XXXXXXX)
'XXXXXXX是特殊文件夹的名字

得到操作系统版本信息
MsgBox(Environment.OSVersion.ToString)

得到当前登录的用户名
MsgBox(Environment.UserName)

得到当前应用程序的路径
MsgBox(Environment.CurrentDirectory)

打开和关闭CD-ROM
'先新建模块
Module mciAPIModule
Declare Function mciSendString Lib "winmm.dll" Alias "mciSendStringA" _
(ByVal lpstrCommand As String, ByVal lpstrReturnString As String, _
ByVal uReturnLength As Integer, ByVal hwndCallback As Integer) As Integer
End Module

'打开CD-ROM
Dim lRet As Long
lRet = mciSendString("set cdAudio door open", 0&, 0, 0)

'关闭CD-ROM
Dim lRet As Long
lRet = mciSendString("set cdAudio door Closed", 0&, 0, 0)
'更多请参见
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/multimed/mmcmdstr_8eyc.asp

得到计算机IP和计算机全名
Dim MYIP As System.Net.IPHostEntry = System.Net.Dns.GetHostByName(System.Net.Dns.GetHostName)
MsgBox("您的IP地址：" & (MYIP.AddressList.GetValue(0).ToString))
MsgBox("您的计算机全名：" & (MYIP.HostName.ToString))

使用win32_operatingSystem (wmi Class)得到计算机信息
'添加ListBox在Form1_Load事件里，并引用system.Managment
Dim opSearch As New ManagementObjectSearcher("SELECT * FROM Win32_OperatingSystem")
Dim opInfo As ManagementObject
For Each opInfo In opSearch.Get()
ListBox1.Items.Add("Name: " & opInfo("name").ToString())
ListBox1.Items.Add("Version: " & opInfo("version").ToString())
ListBox1.Items.Add("Manufacturer: " & opInfo("manufacturer").ToString())
ListBox1.Items.Add("Computer name: " & opInfo("csname").ToString())
ListBox1.Items.Add("Windows Directory: " & opInfo("windowsdirectory").ToString())
Next

列出计算机安装的全部字体，并添加到ListBox
'新建Form并添加ListBox和Button
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim fntCollection As InstalledFontCollection = New InstalledFontCollection()
Dim fntFamily() As FontFamily
fntFamily = fntCollection.Families
ListBox1.Items.Clear()
Dim i As Integer = 0
For i = 0 To fntFamily.Length - 1
ListBox1.Items.Add(fntFamily(i).Name)
Next
End Sub

使用Win32_Processor列出处理器的信息
Imports System.Management
Public Class Form1
Inherits System.Windows.Forms.Form

#Region " Windows 窗体设计器生成的代码 "

Public Sub New()
MyBase.New()

'该调用是 Windows 窗体设计器所必需的。
InitializeComponent()

'在 InitializeComponent() 调用之后添加任何初始化

End Sub

'窗体重写 dispose 以清理组件列表。
Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
If disposing Then
If Not (components Is Nothing) Then
components.Dispose()
End If
End If
MyBase.Dispose(disposing)
End Sub

'Windows 窗体设计器所必需的
Private components As System.ComponentModel.IContainer

'注意: 以下过程是 Windows 窗体设计器所必需的
'可以使用 Windows 窗体设计器修改此过程。
'不要使用代码编辑器修改它。
Friend WithEvents ListBox1 As System.Windows.Forms.ListBox
Friend WithEvents Button1 As System.Windows.Forms.Button
<System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
Me.ListBox1 = New System.Windows.Forms.ListBox
Me.Button1 = New System.Windows.Forms.Button
Me.SuspendLayout()
'
'ListBox1
'
Me.ListBox1.Location = New System.Drawing.Point(8, 8)
Me.ListBox1.Name = "ListBox1"
Me.ListBox1.Size = New System.Drawing.Size(280, 186)
Me.ListBox1.TabIndex = 0
'
'Button1
'
Me.Button1.Location = New System.Drawing.Point(56, 208)
Me.Button1.Name = "Button1"
Me.Button1.Size = New System.Drawing.Size(168, 32)
Me.Button1.TabIndex = 1
Me.Button1.Text = "装载计算机处理器信息"
'
'Form1
'
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.ClientSize = New System.Drawing.Size(296, 254)
Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.Button1, Me.ListBox1})
Me.Text = "计算机处理器信息"
Me.ResumeLayout(False)

End Sub

#End Region

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) _
Handles Button1.Click

Dim ProcQuery As New SelectQuery("Win32_Processor")
Dim ProcSearch As New ManagementObjectSearcher(ProcQuery)
Dim ProcInfo As ManagementObject

For Each ProcInfo In ProcSearch.Get()
Call processorfamily(ProcInfo("Family").ToString)
ListBox1.Items.Add("Description: " & ProcInfo("Description").ToString())
ListBox1.Items.Add("caption: " & ProcInfo("caption").ToString())
ListBox1.Items.Add("Architecture: " & ProcInfo("Architecture").ToString())
Call processortype(ProcInfo("ProcessorType").ToString())
Call CpuStat(ProcInfo("CpuStatus").ToString)
ListBox1.Items.Add("MaxClockSpeed: " & ProcInfo("MaxClockSpeed").ToString() & "MHZ")
ListBox1.Items.Add("L2CacheSpeed: " & ProcInfo("L2CacheSpeed").ToString() & "MHZ")
ListBox1.Items.Add("ExtClock: " & ProcInfo("L2CacheSpeed").ToString() & "MHZ")
ListBox1.Items.Add("ProcessorId: " & ProcInfo("ProcessorId").ToString())
ListBox1.Items.Add("AddressWidth: " & ProcInfo("AddressWidth").ToString() & "Bits")
ListBox1.Items.Add("DataWidth: " & ProcInfo("DataWidth").ToString() & "Bits")
ListBox1.Items.Add("Version: " & ProcInfo("Version").ToString())
ListBox1.Items.Add("ExtClock: " & ProcInfo("ExtClock").ToString() & "MHZ")
Next
End Sub
Function processorfamily(ByVal procssfam)
Dim processtype
Select Case procssfam
Case 1
processtype = "Other"
Case 2
processtype = "Unknown "
Case 3
processtype = "8086 "
Case 4
processtype = "80286 "
Case 5
processtype = "80386 "
Case 6
processtype = "80486 "
Case 7
processtype = "8087 "
Case 8
processtype = "80287 "
Case 9
processtype = "80387 "
Case 10
processtype = "80487 "
Case 11
processtype = "Pentium brand "
Case 12
processtype = "Pentium Pro "
Case 13
processtype = "Pentium II "
Case 14
processtype = "Pentium processor with MMX technology "
Case 15
processtype = "Celeron "
Case 16
processtype = "Pentium II Xeon "
Case 17
processtype = "Pentium III "
Case 18
processtype = "M1 Family "
Case 19
processtype = "M2 Family "
Case 24
processtype = "K5 Family "
Case 25
processtype = "K6 Family "
Case 26
processtype = "K6-2 "
Case 27
processtype = "K6-3 "
Case 28
processtype = "AMD Athlon Processor Family "
Case 29
processtype = "AMD Duron Processor "
Case 30
processtype = "AMD2900 Family "
Case 31
processtype = "K6-2+ "
Case 32
processtype = "Power PC Family "
Case 33
processtype = "Power PC 601 "
Case 34
processtype = "Power PC 603 "
Case 35
processtype = "Power PC 603+ "
Case 36
processtype = "Power PC 604 "
Case 37
processtype = "Power PC 620 "
Case 38
processtype = "Power PC X704 "
Case 39
processtype = "Power PC 750 "
Case 48
processtype = "Alpha Family "
Case 49
processtype = "Alpha 21064 "
Case 50
processtype = "Alpha 21066 "
Case 51
processtype = "Alpha 21164 "
Case 52
processtype = "Alpha 21164PC "
Case 53
processtype = "Alpha 21164a "
Case 54
processtype = "Alpha 21264 "
Case 55
processtype = "Alpha 21364 "
Case 64
processtype = "MIPS Family "
Case 65
processtype = "MIPS R4000 "
Case 66
processtype = "MIPS R4200 "
Case 67
processtype = "MIPS R4400 "
Case 68
processtype = "MIPS R4600 "
Case 69
processtype = "MIPS R10000 "
Case 80
processtype = "SPARC Family "
Case 81
processtype = "SuperSPARC "
Case 82
processtype = "microSPARC II "
Case 83
processtype = "microSPARC IIep "
Case 84
processtype = "UltraSPARC "
Case 85
processtype = "UltraSPARC II "
Case 86
processtype = "UltraSPARC IIi "
Case 87
processtype = "UltraSPARC III "
Case 88
processtype = "UltraSPARC IIIi "
Case 96
processtype = "68040 "
Case 97
processtype = "68xxx Family "
Case 98
processtype = "68000 "
Case 99
processtype = "68010 "
Case 100
processtype = "68020 "
Case 101
processtype = "68030 "
Case 112
processtype = "Hobbit Family "
Case 120
processtype = "Crusoe TM5000 Family "
Case 121
processtype = "Crusoe TM3000 Family "
Case 128
processtype = "Weitek "
Case 130
processtype = "Itanium Processor "
Case 144
processtype = "PA-RISC Family "
Case 145
processtype = "PA-RISC 8500 "
Case 146
processtype = "PA-RISC 8000 "
Case 147
processtype = "PA-RISC 7300LC "
Case 148
processtype = "PA-RISC 7200 "
Case 149
processtype = "PA-RISC 7100LC "
Case 150
processtype = "PA-RISC 7100 "
Case 160
processtype = "V30 Family "
Case 176
processtype = "Pentium III Xeon "
Case 177
processtype = "Pentium III Processor with Intel SpeedStep Technology "
Case 178
processtype = "Pentium 4 "
Case 179
processtype = "Intel Xeon "
Case 180
processtype = "AS400 Family "
Case 181
processtype = "Intel Xeon processor MP "
Case 182
processtype = "AMD AthlonXP Family "
Case 183
processtype = "AMD AthlonMP Family "
Case 184
processtype = "Intel Itanium 2 "
Case 185
processtype = "AMD Opteron Family "
Case 190
processtype = "K7 "
Case 200
processtype = "IBM390 Family "
Case 201
processtype = "G4 "
Case 202
processtype = "G5 "
Case 250
processtype = "i860 "
Case 251
processtype = "i960 "
Case 260
processtype = "SH-3 "
Case 261
processtype = "SH-4 "
Case 280
processtype = "ARM "
Case 281
processtype = "StrongARM "
Case 300
processtype = "6x86 "
Case 301
processtype = "MediaGX "
Case 302
processtype = "MII "
Case 320
processtype = "WinChip "
Case 350
processtype = "DSP "
Case 500
processtype = "Video Processor "
End Select
ListBox1.Items.Add("Family: " & processtype)

End Function
Function CpuStat(ByVal CpuStNUM)
Dim stat
Select Case CpuStNUM
Case 0
stat = "Unknown "
Case 1
stat = "CPU Enabled "
Case 2
stat = "CPU Disabled by User via BIOS Setup "
Case 3
stat = "CPU Disabled By BIOS (POST Error) "
Case 4
stat = "CPU is Idle "
Case 5
stat = "Reserved "
Case 6
stat = "Reserved "
Case 7
stat = "Other "
End Select
ListBox1.Items.Add("CpuStatus: " & stat)
End Function
Function processortype(ByVal proctypenum)
Dim proctype
Select Case proctypenum
Case 1
proctype = "Other "
Case 2
proctype = "Unknown "
Case 3
proctype = "Central Processor "
Case 4
proctype = "Math Processor "
Case 5
proctype = "DSP Processor "
Case 6
proctype = "Video Processor "
End Select
ListBox1.Items.Add("Processor Type: " & proctype)

End Function
End Class

得到CD-ROM信息
Imports System.Management
Public Class Form1
Inherits System.Windows.Forms.Form

#Region " Windows 窗体设计器生成的代码 "

Public Sub New()
MyBase.New()

'该调用是 Windows 窗体设计器所必需的。
InitializeComponent()

'在 InitializeComponent() 调用之后添加任何初始化

End Sub

'窗体重写 dispose 以清理组件列表。
Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
If disposing Then
If Not (components Is Nothing) Then
components.Dispose()
End If
End If
MyBase.Dispose(disposing)
End Sub

'Windows 窗体设计器所必需的
'注意: 以下过程是 Windows 窗体设计器所必需的
'可以使用 Windows 窗体设计器修改此过程。
'不要使用代码编辑器修改它。
Private components As System.ComponentModel.IContainer
Friend WithEvents ListBox1 As System.Windows.Forms.ListBox
<System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
Me.ListBox1 = New System.Windows.Forms.ListBox
Me.SuspendLayout()
'
'ListBox1
'
Me.ListBox1.Location = New System.Drawing.Point(24, 16)
Me.ListBox1.Name = "ListBox1"
Me.ListBox1.Size = New System.Drawing.Size(416, 173)
Me.ListBox1.TabIndex = 0
'
'Form1
'
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.ClientSize = New System.Drawing.Size(456, 206)
Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.ListBox1})
Me.Name = "Form1"
Me.Text = "Form1"
Me.ResumeLayout(False)

End Sub

#End Region

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) _
Handles MyBase.Load
On Error Resume Next
Dim SoundDeviceQuery As New SelectQuery("Win32_CDROMDrive")
Dim SoundDeviceSearch As New ManagementObjectSearcher(SoundDeviceQuery)
Dim SoundDeviceInfo As ManagementObject
For Each SoundDeviceInfo In SoundDeviceSearch.Get()
Dim SizeInMBs As Long = (Val(SoundDeviceInfo("Size").ToString()))
SizeInMBs = Int((SizeInMBs / (1024 * 1024)))
ListBox1.Items.Add("CD-Rom Description: " & SoundDeviceInfo("caption").ToString())
ListBox1.Items.Add("CD-Rom Manufacturer: " & SoundDeviceInfo("Manufacturer").ToString())
ListBox1.Items.Add("CD-Rom Drive: " & SoundDeviceInfo("drive").ToString())
ListBox1.Items.Add("CD-Rom Media Loaded: " & SoundDeviceInfo("MediaLoaded").ToString())
ListBox1.Items.Add("CD-Rom Media Type: " & SoundDeviceInfo("MediaType").ToString())
ListBox1.Items.Add("CD-Rom Volume Name: " & SoundDeviceInfo("VolumeName").ToString())
ListBox1.Items.Add("CD-Rom Size: " & SizeInMBs & " MBytes")
ListBox1.Items.Add("CD-Rom Status: " & SoundDeviceInfo("Status").ToString())
ListBox1.Items.Add("CD-Rom MaxMediaSize: " & SoundDeviceInfo("MaxMediaSize").ToString())
ListBox1.Items.Add("CD-Rom Id: " & SoundDeviceInfo("Id").ToString())
ListBox1.Items.Add("CD-Rom TransferRate: "+Int(SoundDeviceInfo("TransferRate").ToString())+" KBs/秒")
Next
End Sub
End Class

得到硬盘信息
Imports System.Management
Public Class Form1
Inherits System.Windows.Forms.Form

#Region " Windows Form Designer generated code "

Public Sub New()
MyBase.New()
InitializeComponent()
End Sub

Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
If disposing Then
If Not (components Is Nothing) Then
components.Dispose()
End If
End If
MyBase.Dispose(disposing)
End Sub
Private components As System.ComponentModel.IContainer
Friend WithEvents ListBox1 As System.Windows.Forms.ListBox
<System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
Me.ListBox1 = New System.Windows.Forms.ListBox
Me.SuspendLayout()
'
'ListBox1
'
Me.ListBox1.Location = New System.Drawing.Point(8, 8)
Me.ListBox1.Name = "ListBox1"
Me.ListBox1.Size = New System.Drawing.Size(272, 212)
Me.ListBox1.TabIndex = 0
'
'Form1
'
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.ClientSize = New System.Drawing.Size(292, 238)
Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.ListBox1})
Me.Name = "Form1"
Me.Text = "Form1"
Me.ResumeLayout(False)

End Sub

#End Region

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

On Error Resume Next
Dim HDDDeviceQuery As New SelectQuery("Win32_DiskDrive")
Dim HDDDeviceSearch As New ManagementObjectSearcher(HDDDeviceQuery)
Dim HDDDeviceInfo As ManagementObject
For Each HDDDeviceInfo In HDDDeviceSearch.Get()
ListBox1.Items.Add("HDD Description: " & HDDDeviceInfo("caption").ToString())
ListBox1.Items.Add("HDD BytesPerSector: " & HDDDeviceInfo("BytesPerSector").ToString())
ListBox1.Items.Add("HDD CompressionMethod: " & HDDDeviceInfo("CompressionMethod").ToString())
ListBox1.Items.Add("HDD Index: " & HDDDeviceInfo("Index").ToString())
ListBox1.Items.Add("HDD InstallDate: " & HDDDeviceInfo("InstallDate").ToString())
ListBox1.Items.Add("HDD Manufacturer: " & HDDDeviceInfo("Manufacturer").ToString())
ListBox1.Items.Add("HDD Partitions: " & HDDDeviceInfo("Partitions").ToString())
ListBox1.Items.Add("HDD Size: " & Int(Val(HDDDeviceInfo("Size").ToString()) / 2 ^ 30) & " GBytes")
ListBox1.Items.Add("HDD TotalCylinders: " & HDDDeviceInfo("TotalCylinders").ToString())
ListBox1.Items.Add("HDD TotalSectors: " & HDDDeviceInfo("TotalSectors").ToString())
ListBox1.Items.Add("HDD TracksPerCylinder: " & HDDDeviceInfo("TracksPerCylinder").ToString())
ListBox1.Items.Add("HDD TotalHeads: " & HDDDeviceInfo("TotalHeads").ToString())
ListBox1.Items.Add("HDD TotalTracks: " & HDDDeviceInfo("TotalTracks").ToString())
ListBox1.Items.Add("HDD SectorsPerTrack: " & HDDDeviceInfo("SectorsPerTrack").ToString())
ListBox1.Items.Add("HDD SCSILogicalUnit: " & HDDDeviceInfo("SCSILogicalUnit").ToString())
Next
End Sub
End Class

得到声卡信息
Imports System.Management
Public Class Form1
Inherits System.Windows.Forms.Form

#Region " Windows Form Designer generated code "

Public Sub New()
MyBase.New()
InitializeComponent()
End Sub

Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
If disposing Then
If Not (components Is Nothing) Then
components.Dispose()
End If
End If
MyBase.Dispose(disposing)
End Sub
Private components As System.ComponentModel.IContainer
Friend WithEvents ListBox1 As System.Windows.Forms.ListBox
<System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
Me.ListBox1 = New System.Windows.Forms.ListBox
Me.SuspendLayout()
'
'ListBox1
'
Me.ListBox1.Location = New System.Drawing.Point(8, 8)
Me.ListBox1.Name = "ListBox1"
Me.ListBox1.Size = New System.Drawing.Size(272, 212)
Me.ListBox1.TabIndex = 0
'
'Form1
'
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.ClientSize = New System.Drawing.Size(292, 238)
Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.ListBox1})
Me.Name = "Form1"
Me.Text = "Form1"
Me.ResumeLayout(False)

End Sub

#End Region

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim SoundDeviceQuery As New SelectQuery("Win32_SoundDevice")
Dim SoundDeviceSearch As New ManagementObjectSearcher(SoundDeviceQuery)
Dim SoundDeviceInfo As ManagementObject
For Each SoundDeviceInfo In SoundDeviceSearch.Get()
ListBox1.Items.Add("Sound Device Description: " & SoundDeviceInfo("Caption").ToString())
ListBox1.Items.Add("Sound Device Status: " & SoundDeviceInfo("status").ToString())
ListBox1.Items.Add("Sound Device Manufacturer: " & SoundDeviceInfo("Manufacturer").ToString())
Next
End Sub

End Class