While further printing to a physical printer, the DocuWare Desktop Apps are crashing. You also will find the following error in the Windows Event Log:

Name of application: DocuWare.Desktop.exe, Version:, timestamp: 0x564ed3ce
Name of the faulty module: PDF Xpansion windesktop-x86.dll, Version:, timestamp: 0x55b091aa
execption code: 0xc0000005
error offset: 0x000e431a

Application: DocuWare.Desktop.exe

Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.AccessViolationException
at SX.Interop.CPrintProvider.StartPrint(SX.NET.IPrintStatus)
at DocuWare.Printing.SxPrintDocument.Print()

If you are running into this behavior, please change the following parameter in the file of the DocuWare Desktop:

C:\Program(x86)\DocuWare\Desktop\DocuWare.Desktop.exe.config (This file can be found on every client/server where DocuWare Desktop is installed):

<add key="PrintEngine" value="2b"/>

Change this parameter to 2 or 1 (allowed values: "1" for engine of DW up to 6.6 and "2" for the engine of version 6.7).

After you changed the parameter, you have to restart the DocuWare Desktop Service and also the DocuWare Desktop Apps.