There are many ways to do this, depending on what you need. In this article I’m going to highlight 2 of them.

1. Function-style conversion:

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   function ArrayToHash($a) { $hash = @{} $a | foreach { $hash[$_.ProcessName] = $_ } return $hash }

   Usage:

   1	ArrayToHash (Get-Process)

2. Filter-style conversion:

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   filter ArrayToHash { begin { $hash = @{} } process { $hash[$_.ProcessName] = $_ } end { return $hash } }

   Usage:

   1	Get-Process | ArrayToHash