Schedule task to uninstall a program

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Release Time

02/08/2023

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Update Time

12/02/2024

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Description
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Note:

1) Run as logged in user (user must have admin privileges)

2) provide uninstall command at parameter "Command" data type should be string

3) provide arguments at parameter "Args" data type should be string

4) provide no of days at parameter "daYs" data type should be integer

5) provide task name at parameter "taskName" New task will be replaced if the task has same name. data type should be string

Procedure's Instructions

from datetime import datetime, timedelta
import ctypes
import os
import subprocess

Command = itsm.getParameter('Command')  # data type should be string
Args = itsm.getParameter('Args')  # data type should be string
daYs = itsm.getParameter('daYs')  # data type should be integer
taskName = itsm.getParameter('taskName')  # Change the name if required. New task will be replaced if the task has same name data type should be string

class disable_file_system_redirection():
    _disable = ctypes.windll.kernel32.Wow64DisableWow64FsRedirection
    _revert = ctypes.windll.kernel32.Wow64RevertWow64FsRedirection

def __enter__(self):
        self.old_value = ctypes.c_long()
        self.success = self._disable(ctypes.byref(self.old_value))

def __exit__(self, type, value, traceback):
        if self.success:
            self._revert(self.old_value)

with disable_file_system_redirection():
    username = os.path.basename(os.popen(r'whoami').read()).replace('\n', '')
    sid = os.popen(r'wmic useraccount where name="' + username + r'" get sid').read().splitlines()[1].strip()

def ExecuteCmd(cmd):
    with disable_file_system_redirection():
        obj = subprocess.Popen(["powershell", cmd], shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
        out, err = obj.communicate()
        return out, err

def setTakSchXml(psCommand, args, dys, TaskName):
    Current_time = datetime.now()
    TimeForTask = Current_time + timedelta(days=dys)
    Date = datetime.strftime(TimeForTask, "%Y-%m-%d")
    Time = datetime.strftime(Current_time, "%H:%M:%S")
    XML = r'''<?xml version="1.0" encoding="UTF-16"?>
        <Task version="1.2" xmlns="http://schemas.microsoft.com/windows/2004/02/mit/task">
          <Triggers>
            <TimeTrigger>
        ''' + '      <StartBoundary>' + Date + 'T' + Time + '</StartBoundary>' + '''
              <Enabled>true</Enabled>
            </TimeTrigger>
          </Triggers>
          <Principals>
            <Principal id="Author">
              <UserId>''' + sid + r'''</UserId>
              <RunLevel>HighestAvailable</RunLevel>
            </Principal>
          </Principals>
          <Settings>
            <MultipleInstancesPolicy>IgnoreNew</MultipleInstancesPolicy>
            <DisallowStartIfOnBatteries>true</DisallowStartIfOnBatteries>
            <StopIfGoingOnBatteries>true</StopIfGoingOnBatteries>
            <AllowHardTerminate>true</AllowHardTerminate>
            <StartWhenAvailable>false</StartWhenAvailable>
            <RunOnlyIfNetworkAvailable>false</RunOnlyIfNetworkAvailable>
            <IdleSettings>
              <StopOnIdleEnd>true</StopOnIdleEnd>
              <RestartOnIdle>false</RestartOnIdle>
            </IdleSettings>
            <AllowStartOnDemand>true</AllowStartOnDemand>
            <Enabled>true</Enabled>
            <Hidden>false</Hidden>
            <RunOnlyIfIdle>false</RunOnlyIfIdle>
            <WakeToRun>false</WakeToRun>
            <ExecutionTimeLimit>PT72H</ExecutionTimeLimit>
            <Priority>7</Priority>
          </Settings>
          <Actions Context="Author">
            <Exec>
                <Command>''' + psCommand + r'''</Command>
                <Arguments>''' + args + r'''</Arguments>
            </Exec>
            <Exec>
                <Command>schtasks</Command>
                <Arguments>/delete /TN "''' + TaskName + r'''" /f</Arguments>
            </Exec>
          </Actions>
        </Task>'''

ConfigPath = r"C:\Windows\temp\TaskXMLConfig.xml"
    with open(ConfigPath, 'wb') as xmlFile:
        xmlFile.write(XML)
        xmlFile.close()

cmd = r'schtasks /create /tn "' + TaskName + r'" /XML ' + '"' + ConfigPath + '"'
    if os.path.exists(ConfigPath):
        result = ExecuteCmd(cmd)
        os.remove(ConfigPath)
        if result[0] != '':
            print result[0]
            return True
        else:
            print result[1]
    else:
        print "Config file does not exists"

# Command = r'"C:\Users\%username%\AppData\Roaming\Telegram Desktop\unins000.exe" /SILENT'
ExecuteCmd('Unregister-ScheduledTask -TaskName "' + taskName + '" -Confirm:$false')
res = setTakSchXml(Command, Args, daYs, taskName)
if res:
    print "Task Scheduled"
else:
    print "Task not scheduled"

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Schedule task to uninstall a program

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