Normally, the Kourier Service Manager (KSM) is installed on the same server as your SQL database. The KSM is responsible for connecting to your U2 server and running the scheduled services on each account. These services run as phantom processes on the U2 server. If the service that is running is designed to move data from U2 to SQL and you are using the Autorun SSIS Package feature, Kourier will envoke a web service on the ETL server to run the SSIS package associated with each export just prior the completing the service. These SSIS packages run as background processes on the ETL Server. Therefore, it is important to gracefully stop this process before rebooting the ETL Sever.
To stop the Kourier ETL process, do the following:
Once step 1 and 2 are complete, it is safe to reboot the server.
Kourier Integrator Setup and Administration Guide