After a looooooooot of time, I got my hands dirty with Visual Basic 6 and created this little but very useful software named Pak SMS Messenger. You can use this software to send SMS messages to just about any network of Pakistan absolutely free.
As far as I am concerned, I rarely use this software because I don’t send SMS messages usually but this software is definitely going to be useful for those who send hundreds of messages on the regular basis like some of my friends wasting a lot of time, money and possibly energy in sending a host of messages to their girl friends on the daily basis.
Another more useful aspect of this is when there is somebody living abroad and wants to send messages. If they have a registered SIM here in Pakistan, they can send you messages through their registered SIMs by specifying their number in From field of the software.
The software actually sends the SMS messages through the service of sms4mobile.com. In fact, I did not take the permission from them (sorry for that) and used their service to create this software but in a way, I am sort of promoting their service because with each message that you send with this software, there is a text at the bottom of that message showing that this message was sent through sms4mobile.com. Anyways, thanks to very useful service of them.
So go ahead and have some FuN time 
.
Note: This software seems to work currently. If sms4mobile.com changes something in their service, it might not work then.
Great piece of work – I’ve been looking for something like this for a while
Also send free sms via http://www.atsms4u.com
hi want to use this service any way
This does not work for now. i tested right now for the first time and does not work and the site you mentioned sms4mobile is currently down. so switch your app to some other service provide.
@aqeel: This worked previously perfectly fine but now unfortunately sms1234 have changed their settings because of this doesn’t work any more. I will update the software once I find some time. Thanks
hi,
i am working on a .net email client application,and i want to add sms facility as mobile alert msg for high priority emails .
can u plz send me the code of ur project at my email :tulipnoor@yahoo.com
i need it , plz help me