Posted on Thursday, September 15, 2005 - 04:53 pm:
That would be tricky.
My suggestion would be that when your application receives the username and password from the client, you try to issue an HTTP request to NowSMS like this:
http://ip:port/?user=username&password=password
If you receive an "HTTP 200 OK" response, then the username is ok.
If you receive an "HTTP 401" response, then it is not.