File Manager - Can't move uploaded file from temp directory.

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I have concrete up and running on a Windows 2008 server with IIS 7 and PHP 5.3 running on fastCGI. I have read and write permissions on the temp folder and the files directory in the concrete folder. However every time I try to upload a file I get the following:
"Unable to copy file to storage directory. Please check permissions on your upload directory and ensure they can be written to by your web server."
I also get this if I try to move a file from the incoming folder. Anyone have some ideas?

 
srs04 replied on at Permalink Reply
BTW I'm running concrete 5.3.3.1
srs04 replied on at Permalink Best Answer Reply
I figured it out.
For anyone else running IIS 7 and Windows Server 2008 it was the IUSR account the needed read and write permissions to the temporary upload directory PHP uses and the files directory. I was trying to use the IUSR_MachineName account and this was not working.