I have a solution that consists of a Library project (written in C++/CLI) that is a managed wrapper for some legacy C/C++ code.
The solution also consists of other "test driver" projects that uses
and test out the new wrapper Library. These "test driver"
projects are written in C++/CLI, C#, and VB.NET to prove to myself than
any .NET language can use the new wrapper Library.
If I only have C++/CLI or C# based test drivers, then I have the menu item BUILD->BATCH BUILD...
But if I add a VB.NET test driver project, then this menu item is gone. Why

Adding a VB.NET project to a solution removes the "Batch Build..." menu?