For the error message “There was a problem sending the command to the program”, use dr-mario-marx-senologe.de Windows Explorer to access the C:\Program Files\Microsoft Office\Office16 folder and right click on WINWORD.EXE then on Properties, go to the Compatibility tab and uncheck all the boxes.  It has also been reported that the problem can be overcome by editing the registry at HKEY_CLASSES_ROOT\Word.Document.12\shell\Open and deleting the ddeexec key.

The ddeexec can also be kardiologie-singen.de deleted from

HKEY_CLASSES_ROOT\Word.DocumentMacroEnabled.12\shell\Open.

That fix is described at …

http://www.dilloway.co.uk/there-was-a-problem-sending-the-command.html