The backbone of VSTA 2015 language support is the .NET Common Language Runtime (CLR). By design, VSTA 2015 supports any language that can compile to Intermediate Language (IL) and runs on the CLR. However, in practice, the "out-of-the-box" support centers on the two primary managed languages: C# and Visual Basic .NET (VB.NET).
A corresponding version of the base product (VSTA 2015) must be installed before applying the language pack. System Compatibility & Hardware The backbone of VSTA 2015 language support is the
In conclusion, the language support in Microsoft Visual Studio Tools for Applications 2015 is a masterclass in focused pragmatism. By supporting only VB.NET and C#, Microsoft deliberately sacrificed polyglot diversity in favor of clarity, backward compatibility, and runtime robustness. VB.NET serves the vast installed base of VBA customizers, while C# attracts professional developers seeking modern language features. Together, they leverage the full power of the .NET Framework 4.6, ensuring that host applications can be extended reliably. For organizations deploying VSTA 2015, the message is clear: automation is best achieved not through a proliferation of languages, but through the disciplined use of two complementary, powerful, and well-supported dialects of the .NET ecosystem. A corresponding version of the base product (VSTA