how can we send sms to mobile in vb6.0

You need to use some third party components and need to connect to SMS gateway for that. All those does not come free.

peoples visit the source code

Go to website. You need to register first. You DO NOT HAVE to pay anything for now. Download the sample code and active x. When downloaded, you have differant options of code samples available immediatly with 5 FREE sms's. After that 5 you need to purchase more.
The website will educate you in all you want to know.

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