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ping computer before vbscript execution

ping computer before vbscript execution

ping computer before vbscript execution


I need my script to make sure the remote computer is on the network before the rest of the script executes. If it can't ping the computer, then I need a popup box saying that the remote computer is not available. How would I do this?


RE: ping computer before vbscript execution

is the box you are looking for static or dhcp?
if static then why not just put a simple ping command that writes what is returned to another file into a .bat job.
read in the result.  if it's what you need then do your work if not then pop up the messag box.

RE: ping computer before vbscript execution

try this:

On Error Resume Next

Dim strTarget, strPingResults
strTarget = "" 'IP address or hostname

Set WshShell = WScript.CreateObject("WScript.Shell")
Set WshExec = WshShell.Exec("ping -n 3 -w 2000 " & strTarget) 'send 3 echo requests, waiting 2secs each
strPingResults = LCase(WshExec.StdOut.ReadAll)
If InStr(strPingResults, "reply from") Then
  WScript.Echo strTarget & " responded to ping."  
  WScript.Echo strTarget & " did not respond to ping."
End If


RE: ping computer before vbscript execution

Try this one, as a function then call it. Reason is different versions of Ping (Window2000 vs. XP) work differently and some versions make ping open up cmd prompt to do it. This one doesn't show the user anything and work in all version from Windows 2003 down to Windows 98

If IsAlive("WORKSTATION1" then
   'do something here
end if

Function IsAlive(strHost)
'---------- Test to see if host or url alive through ping -----------------
' Returns True if Host responds to ping
' Though there are other ways to ping a computer, Win2K,
' XP and different versions of PING return different error
' codes. So the only reliable way to see if the ping
' was sucessful is to read the output of the ping
' command and look for "TTL="
' strHost is a hostname or IP
    Const OpenAsASCII = 0
     Const FailIfNotExist = 0
     Const ForReading =  1
     Dim objShell, objFSO, sTempFile, fFile
    Set objShell = CreateObject("WScript.Shell")
     Set objFSO = CreateObject("Scripting.FileSystemObject")
    sTempFile = objFSO.GetSpecialFolder(2).ShortPath & "\" & objFSO.GetTempName
    objShell.Run "%comspec% /c ping.exe -n 2 -w 500 " & strHost & ">" & sTempFile, 0 , True
    Set fFile = objFSO.OpenTextFile(sTempFile, ForReading, FailIfNotExist, OpenAsASCII)
    Select Case InStr(fFile.ReadAll, "TTL=")
         Case 0
            IsAlive = False
         Case Else
            IsAlive = True
    End Select
    Set objFSO = Nothing
    Set objShell = Nothing
End Function

Phil Gordemer
ARH Associates

RE: ping computer before vbscript execution

Here is another simple way to do it. Not sure it accounts for the things that gordemer's solution addresses, but it has worked for me.


Set WshShell = CreateObject("WScript.Shell")
PINGFlag = Not CBool(WshShell.run("ping -n 1 " & vSystemIdentifier,0,True))
      If PINGFlag = True Then
         'Successful ping
         'Unsuccessful ping
      End If


RE: ping computer before vbscript execution

wmi also has a Win32_Ping class which might be of use, if not then checking of return code from ping.exe is the most obvious

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