PowerShell 2.0: One Cmdlet at a Time #95 Register-EngineEvent

Continuing the series looking at new cmdlets available in PowerShell 2.0. This time we look at the Register-EngineEvent cmdlet.

What can I do with it?

Subscribe to events generated by the PowerShell engine or the New-Event cmdlet.

Example:

Subscribe to an event when the PowerShell session exits, and save information including the date and time out to a log file.

Register-EngineEvent PowerShell.Exiting 
-Action {"PowerShell exited at " + (Get-Date) | Out-File c:\log.txt -Append}

After closing the PowerShell session (by typing Exit) the date and time it was closed is written to the log file.

How could I have done this in PowerShell 1.0?

PowerShell engine events are a new feature in PowerShell 2.0.

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