visual basic 6 determine if computer is on network

I want to determine if a computer is running using vb 6.0. I am implementing a fail-over system and wanted something that returns the information quickly
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Chad SmithConnect With a Mentor Software EngineerCommented:
Check if a network file exists

Function FileExist(sTestFile As String) As Boolean
   'This function does not use DIR since it is possible that you might have
   'been in the middle of running DIR against another directory in
   'an attempt to match one directory against another.

   'It does not handle wildcard characters
   Dim lSize As Long
   On Error Resume Next
   'Preset length to -1 because files can be zero bytes in length
   lSize = -1
   'Get the length of the file
   lSize = FileLen(sTestFile)
   If lSize > -1 Then
      FileExist = True
      FileExist = False
   End If
End Function
Here´s a very quick and dirty way to do with vbscript. You can´t do itwith VB as the application will fail to load if the redistributablesaren´t installed!

Option Explicit
Const SYSTEM32 = &H25&
Dim objShell, objFolder, objFolderItem, objFSO, sPath, sFile
Set objShell = CreateObject("Shell.Application")
Set objFSO =  CreateObject("Scripting.FileSystemObject")
Set objFolder = objShell.Namespace(SYSTEM32)
Set objFolderItem = objFolder.Self
sPath = objFolderItem.Path
If Right(sPath,1) <> "\" Then sPath = sPath & "\"
sFile = sPath & "Msvbvm60.dll"
If objFSO.FileExists( sFile ) Then
    Wscript.Echo "VB6 Installed"
End If
sFile = sPath & "Msvbvm50.dll"
If objFSO.FileExists( sFile ) Then
    Wscript.Echo "VB5 Installed"
End If

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