Can not Convert System._ComObject to Microsoft.Office.Interop.Outlook.MapiFolder

Here is a litte power shell , that creates a rule for moving mail item
to a specifice folder.But whenever ,
i call

$oMove.Folder = $destFolder;

i get
Can not Convert System._ComObject to
Microsoft.Office.Interop.Outlook.MapiFolder


Full code.

$libraryPath = "C:\WINDOWS\assembly\GAC
\Microsoft.Office.Interop.Outlook\12.0.0.0__71e9bce111e9429c
\Microsoft.Office.Interop.Outlook.dll";
[void][System.Reflection.Assembly]::LoadFile($libraryPath);

[Microsoft.Office.Interop.Outlook.Application]$app = New-Object
Microsoft.Office.Interop.Outlook.ApplicationClass;
$namespace = $app.GetNamespace("MAPI");

$rules = $app.Session.DefaultStore.GetRules();

$defaultFolder =
$namespace.GetDefaultFolder([Microsoft.Office.Interop.Outlook.OlDefaultFolders]:lFolderInbox);

$rule = $rules.Create("Power shell rules",
[Microsoft.Office.Interop.Outlook.OlRuleType]:lRuleReceive);

$oFrom = $rule.Conditions.From;

$oRecip = $oFrom.Recipients.Add("someone@somedomain.com");

$oRecip.Resolve();
$oFrom.Enabled = $true;

$destFolder = $null;

$folders = $defaultFolder.Parent.Folders;
foreach($folder in $folders)
{
if ($folder.Name -eq "Work")
{
$destFolder = $folder;
}
}
$oMove = $rule.Actions.get_MoveToFolder();

$oMove.Folder = $destFolder;


#$oMove.Folder.FolderPath;

#$rules.Save();



--
Regards,
Mehfuz Hossain
http://www.mehfuz.com