Issue Deleting Temp Files in Windows &.
Solution
An issue can occur where Zetadocs has no room to write to the temporary file folder.  It happens occasionally in Windows 7 and requires for the temporary files to be deleted.

The link below includes a simple utility with instructions to fix the issue.  It is recommended for Delivery users to install this utility.  

This issue is with Windows 7, not Zetadocs for Microsoft Dynamics NAV.

http://mintywhite.com/windows-7/7maintenance/automatically-delete-temporary-files-windows-7/