Use powershell commands in a workflow
Within Nintex Workflow it would be very usefull to execute powershell commands. For example: We automatically create a new site collection for new customers which are added to our CRM database. Everyday Nintex will start a workflow with a query on the database to select the new customers. For every new customer a new site collection will be created. So far so good. Afterwards we manually via site settings or via powershell have to change some additional settings like the document-id prefix.
There is a 3rd party tool from DataOne called poweractivity. http://www.dataone.de/poweractivity but I think it would be a very nice feature within Nintex Workflow itself.

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Anonymous commented
Here is another one: http://ntx.codeplex.com/