Issue Deleting Temp Files in Windows &.
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.