[Galaxy S Plus I9001 Android Development] broodplank1337:
Hmm that's everything you need so that makes me think.. what else could it be. which version of Windows do you run? (it should work perfectly on XP/7).

What you could try (if running windows 7) is running the app as Administrator, it might help, also, when the process is started, do you see the cmd windows that are decompiling / compiling? If you see them and they contain errors, it's apktool related, if you don't get any errors at the (bak)smali (compile/decompile) process it's probably related to the 7zip command line file.

Could you try to check that for me? Then I might be able to give you a solution

Here is the source, in case this reveals the problem:

$U_input = InputBox("Custom status bar label - broodROM RC5 -", "Enter your custom label here.")
If $U_input = "" Or $U_input = 1 Then Exit

FileDelete(@ScriptDir & "\tmp\SystemUI\*.*")
FileDelete(@ScriptDir & "\tmp\SystemUINew.apk")
FileDelete(@ScriptDir & "\tmp\SystemUINew\SystemUINew.zip")
FileDelete(@ScriptDir & "\tmp\SystemUINew\res\*.*")
FileDelete(@ScriptDir & "\tmp\SystemUINew\classes.dex")
FileDelete(@ScriptDir & "\tmp\SystemUINew\resources.arsc")
FileDelete(@ScriptDir & "\tmp\SystemUINew.zip")

TrayTip("Custom Status Bar Label", "Decompiling..", 0, 1)
RunWait(@ScriptDir & "\tmp\decompile.bat")

TrayTip("Custom Status Bar Label", "Adjusting Resources..", 0, 1)
FileDelete(@ScriptDir & "\tmp\SystemUI\res\values\strings.xml")
$read = FileRead(@ScriptDir & "\tmp\stringstem.xml")
FileWrite(@ScriptDir & "\tmp\SystemUI\res\values\strings.xml", $read & @CR)
FileWriteLine(@ScriptDir & "\tmp\SystemUI\res\values\strings.xml", @TAB & "<string name=" & Chr(34) & "broodrom" & Chr(34) & ">" & $U_input & "</string>")
FileWriteLine(@ScriptDir & "\tmp\SystemUI\res\values\strings.xml", "</resources>")

TrayTip("Custom Status Bar Label", "Compiling Resources..", 0, 1)
RunWait(@ScriptDir & "\tmp\compile.bat")
FileMove(@ScriptDir & "\tmp\SystemUINew.apk", @ScriptDir & "\tmp\SystemUINew\SystemUINew.zip", 1)
RunWait(@ScriptDir & "\tmp\SystemUINew\extract.bat")
FileDelete(@ScriptDir & "\tmp\SystemUINew\AndroidManifest.xml")
FileCopy(@ScriptDir & "\tmp\SystemUI.apk", @ScriptDir & "\tmp\SystemUINew\SystemUI.zip")

RunWait(@ScriptDir & "\tmp\SystemUINew\addfiles.bat")
Sleep(500)
FileMove(@ScriptDir & "\tmp\SystemUINew\SystemUI.zip", @ScriptDir & "\complete\SystemUI.apk", 1)
Sleep(500)

If FileExists(@ScriptDir & "\complete\SystemUI.apk") Then
#region --- CodeWizard generated code Start ---
;MsgBox features: Title=Yes, Text=Yes, Buttons=OK and Cancel, Icon=Info
If Not IsDeclared("iMsgBoxAnswer") Then Local $iMsgBoxAnswer
$iMsgBoxAnswer = MsgBox(65, "Custom Status Bar Label", "SystemUI.apk has been successfully compiled, do you want to push the file to your device right now? (Make sure you have your phone connected in debugging mode)")
Select
Case $iMsgBoxAnswer = 1 ;OK
Run(@ScriptDir & "\complete\push.bat")

Case $iMsgBoxAnswer = 2 ;Cancel
MsgBox(0, "Custom Status Bar Label", "You can find SystemUI.apk in " & @ScriptDir & "\complete\")

EndSelect
#endregion --- CodeWizard generated code Start ---
Else
MsgBox(0, "Custom Status Bar Label", "Something has gone wrong, please try again!")
EndIf

FileDelete(@ScriptDir & "\tmp\SystemUI\*.*")
FileDelete(@ScriptDir & "\tmp\SystemUINew.apk")
FileDelete(@ScriptDir & "\tmp\SystemUINew\SystemUINew.zip")
FileDelete(@ScriptDir & "\tmp\SystemUINew\res\*.*")
FileDelete(@ScriptDir & "\tmp\SystemUINew\classes.dex")
FileDelete(@ScriptDir & "\tmp\SystemUINew\resources.arsc")
FileDelete(@ScriptDir & "\tmp\SystemUINew.zip")