Install share point client SDK

 #Parameters

$DownloadURL = "https://download.microsoft.com/download/B/3/D/B3DA6839-B852-41B3-A9DF-0AFA926242F2/sharepointclientcomponents_16-6906-1200_x64-en-us.msi"







$Assemblies= @(

        "C:\Program Files\Common Files\microsoft shared\Web Server Extensions\16\ISAPI\Microsoft.SharePoint.Client.dll",

        "C:\Program Files\Common Files\microsoft shared\Web Server Extensions\16\ISAPI\Microsoft.SharePoint.Client.Runtime.dll"

    )

 

#Check if all assemblies given in the list are found

$FileExist = $True

ForEach ($File in $Assemblies)

{

    #Check if CSOM Assemblies are Found

    If(!(Test-Path $File))

    {

        $FileExist = $False; Break;

    }

}

 

#Download and Install CSOM Assemblies

If(!$FileExist)

{

    #Download the SharePoint Online Client SDK

    Write-host "Downloading SharePoint Online Client SDK..." -f Yellow -NoNewline

    $InstallerPath = "$Env:TEMP\SharePointOnlineClientComponents16.msi"

    Invoke-WebRequest $DownloadURL -OutFile $InstallerPath

    Write-host "Done!" -f Green

     

    #Start Installation

    Write-host "Installing SharePoint Online Client SDK..." -f Yellow -NoNewline

    Start-Process MSIExec.exe -ArgumentList "/i $InstallerPath /qb" -Wait

    Write-host "Done!" -f Green

}

Else

{

    Write-host "SharePoint Online CSOM assemblies are already installed!" -f Yellow

}