Help debugging a file upload on IIS

Hi - I have a file upload that returns no error, but the file does not appear on the server. Here is the result of $_FILES: Array ( [f] => Array ( [name] => Elephants.pdf [type] => application/pdf [tmp_name] => C:\WINDOWS\Temp\php3133.tmp [error] => 0 [size] => 114109 ) ) Nothing new at all in C:\Windows\Temp\. PHP is properly putting its session files in there, so I know PHP has permission. Anyway I set Everyone permissions to Full Control for that directory. post_max_size and upload_max_filesize are both 250M. Just not sure what else to check. PHP 5.2.6, Microsoft-IIS/6.0, Windows 2003 Server R2, Enterprise Edition, SP2 Thanks.