Start / Stop SharePoint Services via PowerShell

$SharePointV3Services = ('SQLSERVERAGENT','MSSQLSERVER','W3SVC','SPWriter','SPTrace','SPTimerV3','SPAdmin','OSearch','DCLoadBalancer','DCLauncher')
$SharePointV4Services = ('SQLSERVERAGENT','MSSQLSERVER','W3SVC','SPSearch4','OSearch14','SPWriterV4','SPUserCodeV4','SPTraceV4','SPTimerV4','SPAdminV4','FIMSynchronizationService','FIMService','DCLoadBalancer14','DCLauncher14')
$SharePointV15Services = ('SQLSERVERAGENT','MSSQLSERVER','W3SVC','SPSearchHostController','OSearch15','SPWriterV4','SPUserCodeV4','SPTraceV4','SPTimerV4','SPAdminV4','FIMSynchronizationService','FIMService','DCLoadBalancer15','DCLauncher15')

$Services = $SharePointV3Services
$version = 12
# check for SharePoint 2010
$hive = get-ItemProperty "hklm:\SOFTWARE\Microsoft\Shared Tools\Web Server Extensions\14.0"
if ($hive -eq $null)
{
    if ((get-ItemProperty "hklm:\SOFTWARE\Microsoft\Shared Tools\Web Server Extensions\15.0" SharePoint).SharePoint -eq 'Installed')
    {
        $version = 15
        $Services = $SharePointV15Services
    }
}
else
{
    if ((get-ItemProperty "hklm:\SOFTWARE\Microsoft\Shared Tools\Web Server Extensions\14.0" SharePoint).SharePoint -eq 'Installed')
    {
        $version = 14
        $Services = $SharePointV4Services
    }
}

Write-Host -ForegroundColor Green 'SharePoint Version' $version 'found'
Write-Host -ForegroundColor Yellow 'Press'
Write-Host -ForegroundColor Green '1' -NoNewline
Write-Host -ForegroundColor Yellow ' to start SharePoint Services'
Write-Host -ForegroundColor Green '2' -NoNewline
Write-Host -ForegroundColor Yellow ' to stop SharePoint Services'
Write ''

function StartSharePoint($Services)
{
    Write-Host -ForegroundColor Yellow ('Starting ' + $Services.Length + ' services')
    foreach ($serviceName in $Services)
    {
        $service = Get-Service $serviceName -ErrorAction SilentlyContinue 
        if ($service)
        {
            $startMode = (get-wmiobject win32_service | where-object {$_.Name -eq $serviceName}).StartMode
            if (($service.Status -ne 'Running') -and ($startMode -ne 'Disabled'))
            {
                Write-Host -ForegroundColor Green ('Starting "' + $service.DisplayName + '"')
                Start-Service $serviceName
            }
        }
        else
        {
            Write-Host -ForegroundColor Red ('Service "' + $serviceName + '" does not exist')
        }
    }
}

function StopSharePoint($Services)
{
    Write-Host -ForegroundColor Yellow ('Stopping ' + $Services.Length + ' services')
    for($i = ($Services.Length - 1); $i -gt -1; $i--)
    {
        $serviceName = $Services[$i]

        $service = Get-Service $serviceName -ErrorAction SilentlyContinue 
        if ($service)
        {
            $startMode = (get-wmiobject win32_service | where-object {$_.Name -eq $serviceName}).StartMode
            if ($service.Status -ne 'Stopped')
            {
                Write-Host -ForegroundColor Green ('Stopping "' + $service.DisplayName +'"')
                Stop-Service $serviceName -force
            }
            else
            {
                Write-Host -ForegroundColor Green ('"' + $service.DisplayName + '" is already stopped')
            }
        }
        else
        {
            Write-Host -ForegroundColor Red ('Service "' + $serviceName + '" does not exist')
        }
    }
}

function UserInput($strMsg, $intStyle)
{
  #$strMsg: Message displayed on the console sreen
  #$intStyle: User Input Style:
    #1 = Read-Host (Multiple characters, require to press Enter);
    #2 = $host.ui.rawui.readkey() (Single character, do not require to press enter)
  switch($intStyle)
  {
    1 { $strInput = Read-Host $strMsg ; $host.ui.rawui.foregroundcolor = $Global:fgColor ; return $strInput }
    2 { Write-Host $strMsg; $strInput = $host.UI.RawUI.ReadKey("NoEcho,IncludeKeyDown"); return $strInput}
  }
}

$userInput = UserInput "Enter Choice" 2
switch ($userInput.VirtualKeyCode)
{
    49 { StartSharePoint($Services) }
    50 { StopSharePoint($Services) }
    default { Write-Host -ForegroundColor Red 'Press "1" or "2"' }
}