Technical Note

Windows 10 PDF Viewer is incompatible with conversion policies and print stamp, since regardless the driver language being used, when printing from the PDF Viewer, the jobs are converted to XPS language, thus incapacitating the necessary changes to insert print stamp or convert the document.

In environments with NDD Print Agent Full installed, the popup may not appear when printing using Windows Apps (Metro). This incompatibility results from a blocking by Microsoft, and it is resolved using the NDD Print Agent Only Notifications on the workstations.

For more details contact NDD support.

The NDD Print Agent Sender service may not run correctly on computers where Epson printers are installed via USB ports and EpsonNet is installed in a version other than 1.0.45.0.

The NDD Print Agent intercepts calls made to Windows functions related to the printing process. Using the WritePrinter function, an SPL backup of each print is created in the tpar\spool folder. This is necessary because some drivers do not generate the SPL file in the spool\printers folder. In some drivers, the WritePrinter function is invoked thousands of times for each print, which ends up slowing down the process. Backup can be disabled through the DisablePrintBufferWriting setting, however, prints will not be monitored when the SPL file is not generated in the spool\printers folder.

In such cases, the Agent installed on the workstation will not perform the print processing, however, it will be processed by the Agent installed on the print server. If the environment is configured with printing, authentication or account selection policies that require any user action, printing will be canceled. This behavior occurs when using the full Agent mode on the Server and Workstation. This problem does not happen when the environment is installed with the Agent in "Complete with notifications" mode on the server and "Notifications only" mode on the stations.

In environments where the NDD Print Agent is installed to monitor printers via USB there is an incompatibility with the Lexmark USB Bidi Solution application due to concurrent communication with the printer, making the monitoring of the NDD Print Agent unstable.