During the upload via the DocuWare Desktop you get the following error:
'System.IO.FileLoadException' : 'A procedure imported by 'Microsoft.VisualBasic.Activities.Compiler.dll' could not be loaded.'
Also the documents will not be uploaded.

This behavior is causes by Microsoft security updates. To solve this behavior please follow the Microsoft knowledge base article 3118750:

If you have difficulties uninstalling the problem causing updates, check also this article.