PAM allows the inclusion of several applications as TCP/UDP Services to be invoked from within its environment and control the access to the devices through these applications. This document explains how to add WINSCP as a PAM service.
WinSCP can be added to PAM as a TCP/UDP Service. To do so, fill up the fields in the TCP/UDP service definition window with the following information, assuming WinSCP is installed under C:\Program Files (x86):
Service Name: _WINSCP Local IP: 127.0.0.222 (the last byte can be other than 222, choose the proper one in your system) Port(s): 22:* Protocol: TCP Enable: <selected> Application Protocol: SSH
Just like it is shown in the following screenshot (the 'Comment' field contains the full command for readability, as the 'Client Application' field is not showing the full contents):