how to send message from computer to remote user

hi,

i want to know ,how to send message from my PC to remote user when some successful event occurs.

I think and i am not sure that these are possible ways:

1.using sms providers we can send messages by doing contract with them.

2.using sms gateways we can send messages through their sites and we send to the users.

3.using mobile act as like a modem and we can trigger the mobile to send message when an event is ouucred.....

please tell me the procedure to create port connection and other possible ways to send the messages.

regards,

Mohandoss

[603 byte] By [mohan_dossa] at [2007-11-27 8:13:52]