WSI all of a sudden stopped working.

It is possible your WSI license has expired. To see if this is the case, launch the NoahBSIntegServerTool.exe. This tool can be found in the following location C:\Program Files (x86)\HIMSA\Noah 4. Once the NoahBSInegServerTool is open, select Window>Help>License Info. Check the “Expire Date.” If the license has expired, you need to update your license file.