I solved my problem like this example in Vbscript that generate the Waiting bar in HTA :
'Détermination de l'itinéraire vers les URL(s) saisi par l'utilisateur dans l'InputBox avec la commande DOS "Tracert" animé par une barre de progression
'Date de Création le 06/09/2013 © Hackoo
'Mise à jour le 04/05/2014 : Ajout d'un message d'attente animé par la balise <marquee>
'*********************************Déclaration des variables globales*******************************
Option Explicit
Dim oExec,fso,ws,Temp,Voice,Copyright,Title
Copyright = " Hackoo © 2014"
Set ws = CreateObject("wscript.Shell")
Set fso = CreateObject("Scripting.FileSystemObject")
Temp = ws.ExpandEnvironmentStrings("%Temp%")
Set Voice = CreateObject("SAPI.SpVoice")
'**************************************************************************************************
'Appel au programme principal ou on peut intégrer la barre de progression
Call MonProgramme()
'**************************************************************************************************
Sub MonProgramme()
Dim Command,Command2,Res,LogFile,StrCommand,Argum,startlog,MsgTitre,Titre,MsgAttente,StartTime,DurationTime
MsgTitre = "Traceroute d'une URL © Hackoo © 2014"
StrCommand = "Tracert"
Argum = InputBox("Taper l'adresse d'une URL pour déterminer son itinéraire avec la commande DOS "& DblQuote("Tracert"),MsgTitre,"www.stackoverflow.com")
LogFile = StrCommand & "Log.txt"
If fso.FileExists(LogFile) Then fso.DeleteFile LogFile
Command = "Cmd /c "& StrCommand & " " & Argum &" >> "&LogFile&""
Titre = "La traceroute vers "& DblQuote(Argum) &" est en cours..."
Title = Titre + Copyright
MsgAttente = Titre
Call CreateProgressBar(Titre,MsgAttente)'Creation de barre de progression
Voice.Speak "Please Wait a While !"
Call LancerProgressBar()'Lancement de la barre de progression
StartTime = Timer'Début du Compteur Timer
Res = Ws.Run(Command,0,True)'Exécution de la Commande
DurationTime = FormatNumber(Timer - StartTime, 0) & " seconds."'La durée de l'exécution du script
Call Formater(LogFile)'Pour formater et remplacer les caractères spéciaux unicode dans le LogFile
Call FermerProgressBar()'Fermeture de barre de progression
Voice.Speak "Process of TraceRoute finished in "& DurationTime &" !"
ws.popup "La TraceRoute vers "& DblQuote(Argum) &" est terminée dans "& vbcr & DurationTime,"2",MsgTitre,64
ws.popup Formater(LogFile),"5",MsgTitre,64
Command2 = "Cmd /c Start "&LogFile&""
startlog = Ws.Run(Command2,0,False)
End Sub
'****************************************************************************************************
Sub CreateProgressBar(Titre,MsgAttente)
Dim ws,fso,f,f2,ts,ts2,Ligne,i,fread,LireTout,NbLigneTotal,Temp,PathOutPutHTML,fhta,oExec
Set ws = CreateObject("wscript.Shell")
Set fso = CreateObject("Scripting.FileSystemObject")
Temp = WS.ExpandEnvironmentStrings("%Temp%")
PathOutPutHTML = Temp & "\Barre.hta"
Set fhta = fso.OpenTextFile(PathOutPutHTML,2,True)
fhta.WriteLine "<HTML>"
fhta.WriteLine "<HEAD>"
fhta.WriteLine "<Title> " & Title & "</Title>"
fhta.WriteLine "<HTA:APPLICATION"
fhta.WriteLine "ICON = ""magnify.exe"" "
fhta.WriteLine "BORDER=""THIN"" "
fhta.WriteLine "INNERBORDER=""NO"" "
fhta.WriteLine "MAXIMIZEBUTTON=""NO"" "
fhta.WriteLine "MINIMIZEBUTTON=""NO"" "
fhta.WriteLine "SCROLL=""NO"" "
fhta.WriteLine "SYSMENU=""NO"" "
fhta.WriteLine "SELECTION=""NO"" "
fhta.WriteLine "SINGLEINSTANCE=""YES"">"
fhta.WriteLine "<style type=""text/css"">"
fhta.WriteLine "div {left: 2%; top: 50%;}"
fhta.WriteLine "marquee { height: 25px; width: 450px;}"
fhta.WriteLine "marquee span {height: 20px; width: 20px; background: Red;float: left;}"
fhta.WriteLine ".handle-0 { filter: alpha(opacity=20); -moz-opacity: 0.20; }"
fhta.WriteLine ".handle-1 { filter: alpha(opacity=40); -moz-opacity: 0.40; }"
fhta.WriteLine ".handle-2 { filter: alpha(opacity=60); -moz-opacity: 0.60; }"
fhta.WriteLine ".handle-3 { filter: alpha(opacity=80); -moz-opacity: 0.80; }"
fhta.WriteLine ".handle-4 { filter: alpha(opacity=100); -moz-opacity: 1; }"
fhta.WriteLine "</style>"
fhta.WriteLine "</HEAD>"
fhta.WriteLine "<BODY text=""white""><CENTER><DIV><SPAN ID=""ProgressBar""></SPAN>"
fhta.WriteLine "<span><marquee DIRECTION=""LEFT"" SCROLLAMOUNT=""3"" BEHAVIOR=ALTERNATE><font face=""Comic sans MS"">" & MsgAttente &"</font></marquee></span></DIV></CENTER></BODY></HTML>"
fhta.WriteLine "<div>"
fhta.WriteLine "<marquee direction=""right"" scrollamount=""10"" BEHAVIOR=ALTERNATE>"
fhta.WriteLine "<span class=""handle-0""></span>"
fhta.WriteLine "<span class=""handle-1""></span>"
fhta.WriteLine "<span class=""handle-2""></span>"
fhta.WriteLine "<span class=""handle-3""></span>"
fhta.WriteLine "<span class=""handle-4""></span>"
fhta.WriteLine "</marquee>"
fhta.WriteLine "</div>"
fhta.WriteLine "<SCRIPT LANGUAGE=""VBScript""> "
fhta.WriteLine "Set ws = CreateObject(""wscript.Shell"")"
fhta.WriteLine "Temp = WS.ExpandEnvironmentStrings(""%Temp%"")"
fhta.WriteLine "Sub window_onload()"
fhta.WriteLine " CenterWindow 480,110"
fhta.WriteLine " Self.document.bgColor = ""DarkOrange"" "
fhta.WriteLine " End Sub"
fhta.WriteLine " Sub CenterWindow(x,y)"
fhta.WriteLine " Dim iLeft,itop"
fhta.WriteLine " window.resizeTo x,y"
fhta.WriteLine " iLeft = window.screen.availWidth/2 - x/2"
fhta.WriteLine " itop = window.screen.availHeight/2 - y/2"
fhta.WriteLine " window.moveTo ileft,itop"
fhta.WriteLine "End Sub"
fhta.WriteLine "</script>"
fhta.close
End Sub
'**********************************************************************************************
Sub LancerProgressBar()
Set oExec = Ws.Exec("mshta.exe " & Temp & "\Barre.hta")
End Sub
'**********************************************************************************************
Sub FermerProgressBar()
oExec.Terminate
End Sub
'**********************************************************************************************
'Fonction pour ajouter les doubles quotes dans une variable
Function DblQuote(Str)
DblQuote = Chr(34) & Str & Chr(34)
End Function
'**********************************************************************************************
'Fonction pour formater et remplacer les caractères spéciaux unicode dans le LogFile
Function Formater(File)
Dim fso,fRead,fWrite,Text
Set fso = CreateObject("Scripting.FileSystemObject")
Set fRead = fso.OpenTextFile(File,1)
Text = fRead.ReadAll
fRead.Close
Set fWrite = fso.OpenTextFile(File,2,True)
Text = Replace(Text,"‚","é")
Text = Replace(Text,"ے"," ")
Text = Replace(Text,"ˆ","ê")
Text = Replace(Text,"‡","ç")
Text = Replace(Text,"“","ô")
Text = Replace(Text,"…","à")
Text = Replace(Text,"ٹ","è")
Text = Replace(Text,"ƒ","â")
Text = Replace(Text,"?"," ")
fWrite.WriteLine Text
Formater = Text
End Function
'***********************************************************************************************