Here Mudassar Ahmed Khan has explained with an example, how to use TLS1.2 in projects using .Net 2.0, .Net 3.0, .Net 3.5 and .Net 4.0 with C# and VB.Net.
But, the support for TLS 1.2 is available in .Net 4.5 onwards and hence this article will demonstrate how to use it in projects other Frameworks such as Net 2.0, .Net 3.0, .Net 3.5 and .Net 4.0 without upgrading them.