The hosting API is completely different. Roslyn handles VB.NET and C# with basically the same API. Adding PowerShell is akin to writing the core part of all tha

The hosting API is completely different. Roslyn handles VB.NET and C# with basically the same API. Adding PowerShell is akin to writing the core part of all that a second time. Not that it can't be done, but most of the time PowerShell itself is already a capable REPL, so I guess there's also less need for it in LINQPad.