Renaming of Computer's Name using VBScript

' ************************************************

' RENAME COMPUTER NAME

' ************************************************
Option Explicit 
 ElevateIfNeeded
 
Dim Text, Title
Dim WshNetwork
Dim objshell		' Object variable
Dim oShell         
Text = "Networking information" & vbCrLf & vbCrLf
Title = "Rename Hostname?"
 
' Create a new WshNetwork object to access network properties.
Set WshNetwork = WScript.CreateObject("WScript.Network")
 
Text = Text & "Computer name : " & WshNetwork.ComputerName & vbCrLf
Text = Text & "Domain : " & WshNetwork.UserDomain & vbCrLf
Text = Text & "User name : " & WshNetwork.UserName & vbCrLf & vbCrLf
Text = Text & "Do you want to rename this computer?"
 
If MsgBox(Text, vbYesNo + vbQuestion, Title) = vbyes Then
	Dim strComputerName, objWMIService, objComputer, returnCode
 
	strComputerName = InputBox("Enter a new machine name for this computer:", "Rename Computer")
 
	If strComputerName <> "" Then 
 
		Set objWMIService = GetObject("Winmgmts:root\cimv2") 
 
		' Call always gets only one Win32_ComputerSystem object. 
		For Each objComputer in objWMIService.InstancesOf("Win32_ComputerSystem")
			ReturnCode = objComputer.Rename(strComputerName) 
		Next
		If ReturnCode <> 0 Then
			MsgBox "There was a problem changing the computer name.  System error code : " & ReturnCode
		Else
			If MsgBox("Changes made.  Do you wish to restart the computer?", vbYesNo + vbQuestion, Title) = vbyes Then 
				objShell.Run "rundll32 shell32.dll,SHExitWindowsEx 2", 1, False
			Else 
				MsgBox "You must restart computer for changes to take effect"
			End If 
		End If 
	End If 
End If 
Sub ElevateIfNeeded
	If GetOsVersionNumber > 6.0 Then 'Windows Vista or higher
		If NOT UserPerms("ELEVATED") Then
			Set oShell = CreateObject("Shell.Application")
			oShell.ShellExecute "wscript.exe", WScript.ScriptFullName, "", "runas", 1
			WScript.Quit 0
		End If
	End If 
End Sub

Function UserPerms (PermissionQuery)          
	UserPerms = False  ' False unless proven otherwise           
	Dim CheckFor, CmdToRun         

	Select Case Ucase(PermissionQuery)           
		'Setup aliases here           
		Case "ELEVATED"           
			CheckFor =  "S-1-16-12288"           
		Case "ADMIN"           
			CheckFor =  "S-1-5-32-544"           
		Case "ADMINISTRATOR"           
			CheckFor =  "S-1-5-32-544"           
		Case Else                  
			CheckFor = PermissionQuery                  
	End Select           

	CmdToRun = "%comspec% /c whoami /all | findstr /I /C:""" & CheckFor & """"  

	Dim oShell, returnValue        
	Set oShell = CreateObject("WScript.Shell")  
	returnValue = oShell.Run(CmdToRun, 0, true)     
	If returnValue = 0 Then UserPerms = True                   
End Function


Function GetOsVersionNumber()
	Dim oShell, sOStype, sOSversion
	Set oShell = CreateObject("Wscript.Shell")

	On Error Resume Next

	sOStype = oShell.RegRead(_
		"HKLM\SYSTEM\CurrentControlSet\Control\ProductOptions\ProductType")

	If Err.Number<>0 Then
		Err.Clear

		sOStype = oShell.RegRead(_
			"HKLM\SOFTWARE\Microsoft\Windows" & _
			"\CurrentVersion\VersionNumber")

	Else ' OS is NT based
		sOSversion = oShell.RegRead(_
			"HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\CurrentVersion")
		If Err.Number<>0 Then
			GetOsVersion = "Unknown NTx"
			Exit Function
		End If
	End If

	SetLocale "en-us"
	GetOsVersionNumber = CDbl(sOSversion)
End Function
                                              

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