Archive/Move files based on Modified Date range to another Library Using PowerShell while retaining Metadata

Question

Hi,
I am trying to archive files from a SharePoint 2010 document library by moving them to another library that's a dedicated archive/folder/library. The files to be moved are selected based on their modified date column value that should range between any time
in the past to January 1st 2012. 
Also, to be able to retain the tags and cloumn values after the move. Open in explorer does not bring along the user added tags.
I tried to edit this script
$WebURL = "http://mysite.com/";
$ListDisplayName = "Crawl Test Library";
$ArchiveFolderName = "Crawl Test Library Archive";
function moveItems ()
trap
#make sure we dispose of these in the event of an error to avoid memory leaks:
write-host "Error - disposing of objects...";
$Web.Dispose();
$Site.Dispose();
[Microsoft.SharePoint.SPSite] $Site = New-Object Microsoft.SharePoint.SPSite($WebURL);
[Microsoft.SharePoint.SPWeb] $Web = $Site.OpenWeb();
[Microsoft.SharePoint.SPList] $List = $Web.Lists[$ListDisplayName];
$FolderToMoveTo = $List.RootFolder.Url + "/" + $FolderName;
$ItemMoveCount=0;
$Query = New-Object Microsoft.SharePoint.SPQuery;
$Query.Folder = $list.RootFolder;
$camlQuery = "<Where><Leq><FieldRef Name='Modified' /><Value Type='DateTime'>2012-01-01T00:00:00Z</Value></Leq></Where>"
$Query.Query = $camlQuery
$Query.RowLimit = 2200; #limit query because of large folder
$List.GetItems($Query) |
Where {$_.ContentType.Name -ne "Folder"} |
foreach-object {
#Line below will simply output to console and demonstrates another .NET call
[System.String]::format("Moving Item {0} with ID {1}...",$_.Name, $_.ID.ToString());
$Web.GetFile($_.Url).MoveTo([System.String]::format("{0}/{1}",$FolderToMoveTo,$_.Name));
write-host "Success...";
$ItemMoveCount++;
write-host "==============================================================================";
write-host "Complete! -> Moved " $ItemMoveCount " Items to directory " $FolderName;
write-host "==============================================================================";
#dispose:
$Web.Dispose();
$Site.Dispose();
#garbage collection
[GC]::Collect()
to do that but it doesn't seem to work. I am no guru in powershell yet so any help is appreciated.
Thanks.

Answer 1

This solution gets the job done. Much thanks to
Ian Hayse
NB...The Modified and Created dates are gonna reflect runtime dates now 
$web = Get-SPWeb "http://sharepointed.com/"
$list = $web.Lists["Shared Documents"]
$spQuery = New-Object Microsoft.SharePoint.SPQuery
$spQuery.ViewAttributes = "Scope='Recursive'";
$spQuery.RowLimit = 2000
$caml = '<Where><Lt><FieldRef Name="Created" /><Value IncludeTimeValue="TRUE" Type="DateTime">2014-01-01T04:06:45Z</Value></Lt></Where> '
$spQuery.Query = $caml
do
$listItems = $list.GetItems($spQuery)
$spQuery.ListItemCollectionPosition = $listItems.ListItemCollectionPosition
$listTotal = $listItems.Count
for ($x=$listTotal-1;$x -ge 0; $x--)
try
$listItems[$x].CopyTo("http://sharepoint/Docs/Documents/"+ $listItems[$x].name)
Write-Host("DELETED: " + $listItems[$x].name)
$listItems[$x].Recycle()
catch
Write-Host $_.Exception.ToString()
while ($spQuery.ListItemCollectionPosition -ne $null)