DocuWare context-sensitive help will not open and display on Windows Vista and Windows 7, since the WinHlp32.exe file is not supplied with Windows Vista and Windows 7.
If you wish to use context-sensitive help on Windows Vista or Windows 7, you must download the WinHlp32.exe file for Windows Vista or Windows 7 from the Microsoft Download Center and integrate it in your system.
Link to download file for Windows Vista
This Microsoft page also contains a link to related Microsoft Knowledge Base articles.
Link to download file for Windows 7