Send SMS using the PSWinCom Gateway .Net SDK
https://wiki.pswin.com/Developer-Tools.ashx#NET_0
Retrieve SMS and Delivery reports from the PSWinCom Gateway using the SOAP Polling API
https://wiki.pswin.com/POLLING.ashx
This is a simple ASP.Net sample application that will receive SMS and DR Requests from the PSWinCom Gateway using the XML over HTTP API.
https://wiki.pswin.com/Gateway%20XML%20API.ashx