.NET .NET Development Microsoft .NET development is core expertise of Variance Infotech. We have started Microsoft.NET development since early 2009. We have experience of working with the old version of Microsoft .NET 1.0 to the latest version of Microsoft .NET 4.0 from last 8 years. Here in Variance Infotech we are having Microsoft certified, highly skilled and experienced .NET developers in India. We have developed small scale application to large ERP in .NET using C# and VB.NET.