Administrator audit logging is disabled unexpectedly during an Exchange Server 2010 SP1 installation

$agent = Get-CmdletExtensionAgent "Admin Audit Log Agent"; 
if ($agent -eq $null) 
{ 
Write-Host "Please run this script on an Exchange Server 2010 SP1 update rollup 4 box!" -ForegroundColor Green; 
} 
else 
{ 
Write-Host "Current object version of Admin Audit Log Agent is "$agent.ExchangeVersion.ToString() -ForegroundColor Green; 
if ($agent.ExchangeVersion.Major -gt 1) 
{ 
Write-Host "Changing the object version into 1.10 (14.0.100.0)" -ForegroundColor Green; 
$entry = [adsi]("LDAP://" + $agent.DistinguishedName); 
$entry.msExchVersion = "1170120890224640"; 
$entry.CommitChanges(); 
 
Get-CmdletExtensionAgent $agent.Name | fl name, *version, issystem; 
} 
}