In 2000, the performance overhead was too large. PowerShell, and most of PS applets are written in C#. PowerShell is a lightweight scripting layer on top of the

In 2000, the performance overhead was too large. PowerShell, and most of PS applets are written in C#. PowerShell is a lightweight scripting layer on top of the same .NET runtime. BTW, last couple times I dealt with Linux, I remember essential userland OS components implemented with bash scripts.