helper function to write local GPO startup/shutdown script

    scripts are stored in scripts.ini and psscripts.ini files in
    ``WINDIR\\System32\\GroupPolicy\\Machine|User\\Scripts``

    these files have the hidden attribute set

    files have following format:
        empty line
        [Startup]
        0CmdLine=<path to script 0>
        0Parameters=<script 0 parameters>
        [Shutdown]
        0CmdLine=<path to shutdown script 0>
        0Parameters=<shutdown script 0 parameters>

    Number is incremented for each script added

    psscript file also has the option of a [ScriptsConfig] section, which has
    the following two parameters:
        StartExecutePSFirst
        EndExecutePSFirst

    these can be set to True/False to denote if the powershell startup/shutdown
    scripts execute first (True) or last (False), if the value isn't set, then
    it is 'Not Configured' in the GUI

def _writeGpoScript(psscript=False):
    '''
    helper function to write local GPO startup/shutdown script

    scripts are stored in scripts.ini and psscripts.ini files in
    ``WINDIR\\System32\\GroupPolicy\\Machine|User\\Scripts``

    these files have the hidden attribute set

    files have following format:
        empty line
        [Startup]
        0CmdLine=<path to script 0>
        0Parameters=<script 0 parameters>
        [Shutdown]
        0CmdLine=<path to shutdown script 0>
        0Parameters=<shutdown script 0 parameters>

    Number is incremented for each script added

    psscript file also has the option of a [ScriptsConfig] section, which has
    the following two parameters:
        StartExecutePSFirst
        EndExecutePSFirst

    these can be set to True/False to denote if the powershell startup/shutdown
    scripts execute first (True) or last (False), if the value isn't set, then
    it is 'Not Configured' in the GUI
    '''
    _machineScriptPolicyPath = os.path.join(os.getenv('WINDIR'),
                                            'System32',
                                            'GroupPolicy',
                                            'Machine',
                                            'Scripts',
                                            'scripts.ini')
    _machinePowershellScriptPolicyPath = os.path.join(os.getenv('WINDIR'),
                                                      'System32',
                                                      'GroupPolicy',
                                                      'Machine',
                                                      'Scripts',
                                                      'psscripts.ini')
    _userScriptPolicyPath = os.path.join(os.getenv('WINDIR'),
                                         'System32',
                                         'GroupPolicy',
                                         'User',
                                         'Scripts',
                                         'scripts.ini')
    _userPowershellScriptPolicyPath = os.path.join(os.getenv('WINDIR'),
                                                   'System32',
                                                   'GroupPolicy',
                                                   'User',
                                                   'Scripts',
                                                   'psscripts.ini')