Powershell script: Copy DEV Layers to LIVE

[void][System.Reflection.Assembly]::Load('System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089')
$AXSERVER_DEV = 'srvaos2'
$AXSERVICE_DEV = 'AOS50?01' # ? stands for $
$AXPATH_DEV = '\\'+ $AXSERVER_DEV + '\c$\Program Files\Microsoft Dynamics AX\50\Application\Appl\AX09_DEV'
$AXPATH_DEV_OLD = '\\'+ $AXSERVER_DEV + '\c$\Program Files\Microsoft Dynamics AX\50\Application\Appl\AX09_DEV\old'
$AXSERVER_PROD = 'srvaos1'
$AXSERVICE_PROD = 'AOS50?02' # ? stands for $
$AXPATH_PROD = '\\'+ $AXSERVER_PROD + '\c$\Program Files\Microsoft Dynamics AX\50\Application\Appl\AX09_LIVE'
$AXPATH_PROD_OLD = '\\'+ $AXSERVER_PROD + '\c$\Program Files\Microsoft Dynamics AX\50\Application\Appl\AX09_LIVE\old'
$LABELFILES = 'axsa*.ald'
$LAYERFILES = 'axcus*.aod'
$AOIFILES = '*.aoi'
$ALIFILES = '*.ali'

function copyAXAppl
{
    #DEV and PROD services must be stopped
    echo ('checking service ' + $AXSERVICE_DEV + ' on ' + $AXSERVER_DEV)
    if((get-service -ComputerName $AXSERVER_DEV -name $AXSERVICE_DEV).status -eq 'Stopped')
    {
        echo 'ok' ('checking service ' + $AXSERVICE_PROD + ' on ' + $AXSERVER_PROD)
        if((get-service -ComputerName $AXSERVER_PROD -name $AXSERVICE_PROD).status -eq 'Stopped')
        {
            echo 'ok' ('copying from ' + $AXPATH_DEV + ' to ' + $AXPATH_PROD)
            #CREATE PROD\OLD BACKUP DIR (YYYYMMDD)
            if(-not (test-path (join-path $AXPATH_PROD_OLD (get-date -uformat '%Y%m%d'))))
            {
                new-item -path $AXPATH_PROD_OLD -name (get-date -uformat '%Y%m%d') -itemtype directory
            }
            #BACKUP PROD (only CUS Files)
            (dir -path $AXPATH_PROD -name $LABELFILES ) |
            foreach-object {copy $_.pspath (join-path $AXPATH_PROD_OLD (get-date -uformat '%Y%m%d')) }
            (dir -path $AXPATH_PROD -name $LAYERFILES) |
            foreach-object {copy $_.pspath (join-path $AXPATH_PROD_OLD (get-date -uformat '%Y%m%d')) }
            #COPY PROD\OLD\{14 days old} -> PROD\OLD
            if(test-path (join-path $AXPATH_PROD_OLD (get-date (get-date).addDays(-14) -uformat '%Y%m%d')))
            {
                (dir -path (join-path $AXPATH_PROD_OLD (get-date (get-date).addDays(-14) -uformat '%Y%m%d')) -name '*.ald' ) |
                foreach-object {copy $_.pspath $AXPATH_PROD_OLD }
                (dir -path (join-path $AXPATH_PROD_OLD (get-date (get-date).addDays(-14) -uformat '%Y%m%d')) -name '*.aod' ) |
                foreach-object {copy $_.pspath $AXPATH_PROD_OLD }
            }
            #CREATE DEV\OLD BACKUP DIR (YYYYMMDD)
            if(-not (test-path (join-path $AXPATH_DEV_OLD (get-date -uformat '%Y%m%d'))))
            {
                new-item -path $AXPATH_DEV_OLD -name (get-date -uformat '%Y%m%d') -itemtype directory
            }
            #BACKUP DEV (only CUS Files)
            (dir -path $AXPATH_DEV -name $LABELFILES ) |
            foreach-object {copy $_.pspath (join-path $AXPATH_DEV_OLD (get-date -uformat '%Y%m%d')) }
            (dir -path $AXPATH_DEV -name $LAYERFILES) |
            foreach-object {copy $_.pspath (join-path $AXPATH_DEV_OLD (get-date -uformat '%Y%m%d')) }
            #COPY DEV -> DEVOLD
            (dir -path $AXPATH_DEV -name '*.ald' ) |
            foreach-object {copy $_.pspath $AXPATH_DEV_OLD }
            (dir -path $AXPATH_DEV -name '*.aod' ) |
            foreach-object {copy $_.pspath $AXPATH_DEV_OLD }
            
            #COPY DEV->PROD (only CUS Files)
            (dir -path $AXPATH_DEV -name $LABELFILES ) |
            foreach-object {copy $_.pspath $AXPATH_PROD }
            (dir -path $AXPATH_DEV -name $LAYERFILES ) |
            foreach-object {copy $_.pspath $AXPATH_PROD }
            #DELETE PROD AOI
            (dir -path $AXPATH_PROD -name $AOIFILES ) |
            foreach-object {remove-item $_.pspath}
            #DELETE DEV AOI
            (dir -path $AXPATH_DEV -name $AOIFILES ) |
            foreach-object {remove-item $_.pspath}
            #DELETE PROD ALI
            (dir -path $AXPATH_PROD -name $ALIFILES ) |
            foreach-object {remove-item $_.pspath}
            #DELETE DEV ALI
            (dir -path $AXPATH_DEV -name $ALIFILES ) |
            foreach-object {remove-item $_.pspath}
        }
        else
        {
        [System.Windows.Forms.MessageBox]::Show('First stop '' + (get-service -name AOS50?02).Displayname + ''')
        }
    }
    else
    {
        [System.Windows.Forms.MessageBox]::Show('First stop '' + (get-service -name AOS50?01).Displayname + ''')
    }
}