Operating system name and version: Windows 10
Version of smsd: 3.1.21
Smsd installed from: http://smstools3.kekekasvi.com/index.php?p=packages
Name and model of a modem / phone: -
Interface: -

Hi
I'm new to this SMS Server tools 3.
I have installed this software in my PC as per instructions provided in the website where i downloaded the software.
According to the instructions i tried to run the command "smsd -s" in a Cygwin window after installing and configuring.
It showed an error as "Status monitoe is not included in this compilation".
Can anyone help me regarding this?

You could use the sms3 script.

If you want to use status monitor, you should download and install the OSSP mm Shared Memory Library (libmm), and recompile smsd with statistics enabled (in src/Makefile).

Which one is better?
The sms3 script or status monitor?

Start/stop script sms3 should usually be used. It runs smsd as a daemon. If status monitor is included in the compilation, status files are written to /var/spool/sms. Status monitor is not mandatory, and is not enabled by default.

Running with smsd -s is meant for testing purposes. It runs smsd on foreground and prints status to the console. In this case status monitor must be installed and smsd compiled with it.