What is a custom action?

[zotsf]

I was setting up some Rules to manage my email and noticed that one of the
options is to 'perform a custom action'. What are they? How do you create
them?

I can't find any help on it, nor is it evident what to do.

Thanks for your help.

 

[Sue Mosher [MVP-Outlook]]

Custom actions are .dll components created with Extended MAPI to add
functionality to Rules Wizard. See
http://www.slipstick.com/addins/custom.htm