How to check if PowerShell snap-in is already loaded before calling Add-PSSnapin

Question

I have a group of PowerShell scripts that sometimes get run together, sometimes one at a time. Each of the scripts requires that a certain snap-in be loaded.

Right n

Answer 1

Surpisingly, nobody mentioned the native way for scripts to specify dependencies: the #REQUIRES -PSSnapin Microsoft.PowerShell... comment/preprocessor directive. Just the same you could require elevation with -RunAsAdministrator, modules with -Modules Module1,Module2, and a specific Runspace version.

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