Exchange 2010 Distribution Group Convertor

#Convert a dynamic distribution group to a regular distribution group in Exchange 2010
#Sheldon Alman - sheldonalman at gmail.com

$employees = Get-DynamicDistributionGroup "(dynamic group)" #This is the dynamic group to be read from
$groupName = Get-distributiongroup "(regular group name)" -erroraction 'silentlycontinue' #This is the group to be modified. Continues if there are any errors encountered.

#if the group exists, remove it and re-create it.  If it doesn't exist, create it.
if ( $groupname )
{
    remove-distributiongroup "(regular group)" -Confirm:$false #disables confirmation of group removal.
    new-distributiongroup "(regular group)"
    set-distributiongroup "Employees" -customattribute11 "(whatever attribute you use to populate the group)"
}
else
{
    new-distributiongroup "(regular group)"
    set-distributiongroup "(regular group)" -customattribute11 "(whatever attribute you use to populate the group)"
}
Get-Recipient -RecipientPreviewFilter $employees.RecipientFilter | export-csv C:\filename.csv #prints pertinent information about members of the group and exports it to csv

import-csv C:\filename.csv | foreach { Add-DistributionGroupMember "(regular group)" -member $_.name }
Remove-item C:\filename.csv -Confirm:$false #remove csv file if necessary