Installing the MessageSender Service
Although the MessageSender files have been installed on your system, you still need to install the Windows service as a separate step. Fortunately this is easy to do with MessageSender Manager and no technical knowledge is required.
If you have the appropriate access rights, you can run the Windows Services app (Services.msc) to see if the MessageSender service is running.
You may need administrator rights to install the MessageSender service. If you get an error message (eg. Access Denied) when installing the service, you can try the following:
If the above doesn't work either, then you will need someone with a system administrator account to login to the server or Host PC you are on and perform the install for you.