Quintus has just published a great PowerPack for managing Citrix XenApp (a.k.a. Presentation) Server.
It has 26 (!) different PowerShell functions to manage Citrix farms, users, applications, printers, and much more. He even has actions for application backup and restore!
Full list of functionality can be found at the powerpack page here.
The scripts use the MFCOM APIs which Christian described here a couple of weeks ago. It’s nice to see Quintus now taking the concept and running with it to create the whole Citrix management library!