How can I run initialization code each time my snap-in is loaded?

I have a PowerShell snapin, and I would like 开发者_StackOverflowto run a bit of initialization code (hooking some AppDomain events) each time my snapin is loaded (i.e. once for each powershell.exe process that is started). How can this be accomplished?

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One approach, and this is probably a bit rube-goldberg in nature, is to hook into a provider's startup code. This assumes that in your snapin configuration you have declared a default drive to initialize. It just so happens that in PSCX we use a provider to store all of our settings and global variables to minimize impact on the user's global session space. The initialization of this settings drive provided a convenient place for us to hook in other initialization code.

Now if we weren't creating a provider, I assume there is some other way to initialize code early but I don't know off the top of my head.