Microsoft Monitoring Agent - powershell script problem

Mike_Elliott 

$multipleWorkspaces = $false
        $mma = New-Object -ComObject 'AgentConfigManager.MgmtSvcCfg'
        $workspaces = $mma.GetCloudWorkspaces()
        if($workspaces[1]){
            $multipleWorkspaces = $true
            Write-Log -Message "Multiple workspaces configured" -Source $deployAppScriptFriendlyName
        }

if($multipleWorkspaces){
            $mma.RemoveCloudWorkspace($WorkspaceId)
            $mma.ReloadConfiguration()

            Write-Log -Message "Removed workspace $workspaceId" -Source $deployAppScriptFriendlyName
        }
        else{

            $appInstalled = Get-InstalledApplication -Name "Microsoft Monitoring Agent"
	        $appInstalledCount = $(($appInstalled | Measure-Object).Count)
	        Write-Log -Message "Detected $appInstalledCount instances of $appName" -Severity 1 -Source $deployAppScriptFriendlyName

	        foreach ($appInstallation in $appInstalled) {
		        Write-Log -Message "Processing $($appInstallation.DisplayName) $($appInstallation.DisplayVersion)" -Severity 1 -Source $deployAppScriptFriendlyName
		        Write-Log -Message "UninstallString: $($appInstallation.UninstallString)" -Severity 1 -Source $deployAppScriptFriendlyName
		        # If the uninstallstring has quotes, you need to remove them
		        $uninstallString = $appInstallation.UninstallString.Replace('"', "")
                $uninstallString = $appInstallation.UninstallString.Replace('MsiExec.exe /I', "")
                Write-Log -Message "Updated UninstallString: $($uninstallString)" -Severity 1 -Source $deployAppScriptFriendlyName
                Execute-MSI -Action Uninstall -Path $uninstallString
		        Write-Log -Message "Exit Code: $($execProcess.ExitCode)" -Severity 1 -Source $deployAppScriptFriendlyName
		    }
            Write-Log -Message "Uninstalled MMA" -Source $deployAppScriptFriendlyName
        }

This is the script. Know that is uses PSADT so some functions will not work out of the box PS