Stop running instances of RoboSource Control and RoboHelp HTML.
Stop the service RSO3 MiddleTier Service.
Click Start. From the Start menu, select Run.
Type services.msc and press Enter.
In the Services console, select RSO3 MiddleTier Service. Right-click and select Stop.
Click the link below to download the RSO3MiddleTierService.zip file. Extract the .zip file and then replace the RSO3MiddleTierService.exe file in the RoboSource installation folder with the downloaded file.