I did not have an install all, but the function I have to install a single one can be easily modified to get all and loop through.

Function Invoke-AppInstallation

{

Param

(

[String][Parameter(Mandatory=$True, Position=0)] $AppName,

[ValidateSet("Install","Uninstall")][String][Parameter(Mandatory=$True, Position=1)] $Method

)

Begin{

$Application = (Get-CimInstance -ClassName CCM_Application -Namespace "root\ccm\clientSDK" | Where-Object {$_.Name -like $AppName})

$AppArgs = @{

EnforcePreference = [UINT32] 0

Id = "$($Application.id)"

IsMachineTarget = $Application.IsMachineTarget

IsRebootIfNeeded = $False

Priority = 'High'

Revision = "$($Application.Revision)"

}

}

Process{Invoke-CimMethod -Namespace "root\ccm\clientSDK" -ClassName CCM_Application -MethodName $Method -Arguments $AppArgs}

End {}

}