14_2.ps1

function Set-TMServiceLogon {
    [CmdletBinding()]
    Param(
        [Parameter(Mandatory=$True,
                   ValueFromPipelineByPropertyName=$True)]
        [string]$ServiceName,
        [Parameter(Mandatory=$True,
                   ValueFromPipeline=$True,
                   ValueFromPipelineByPropertyName=$True)]
        [string[]]$ComputerName,
        [Parameter(ValueFromPipelineByPropertyName=$True)]
        [string]$NewPassword,
        [Parameter(ValueFromPipelineByPropertyName=$True)]
        [string]$NewUser,
        [string]$ErrorLogFilePath
    )
BEGIN{}
PROCESS{
    ForEach ($computer in $ComputerName) {
        Write-Verbose "Connect to $computer on WS-MAN"
        $option = New-CimSessionOption -Protocol Wsman
        $session = New-CimSession -SessionOption $option `
                                  -ComputerName $Computer
        If ($PSBoundParameters.ContainsKey('NewUser')) {
            $args = @{'StartName'=$NewUser
                      'StartPassword'=$NewPassword}
        } Else {
            $args = @{'StartPassword'=$NewPassword}
            Write-Warning "Not setting a new user name"
        }
        Write-Verbose "Setting $servicename on $computer"
        $params = @{'CimSession'=$session
                    'MethodName'='Change'
                    'Query'="SELECT * FROM Win32_Service " +
                            "WHERE Name = '$ServiceName'"
                    'Arguments'=$args}
        $ret = Invoke-CimMethod @params
        switch ($ret.ReturnValue) {
            0  { $status = "Success" }
            22 { $status = "Invalid Account" }
            Default { $status = "Failed: $($ret.ReturnValue)" }
        }
        $props = @{'ComputerName'=$computer
                   'Status'=$status}
        $obj = New-Object -TypeName PSObject -Property $props
        Write-Output $obj
        Write-Verbose "Closing connection to $computer"
        $session | Remove-CimSession
    } #foreach
} #PROCESS
END{} 
} #function