Some features of Visual COBOL for Eclipse on Windows require an X Windows installation, hence Micro Focus ViewNowX is provided with the product. To install, run the file ViewNow_X_Server.exe in your Visual COBOL installation. By default this will be in the %ProgramFiles(x86)%\Micro Focus\Visual COBOL\ViewNowX folder.
ViewNowX requires that your client machine has Microsoft Visual C++ 2008 SP1 Redistributable Package (x86) installed. If it is missing from your machine, the ViewNowX installation will offer a link to download the package.