http://www.gridmetric.com/products/ave.html

Gridmetric's AVE is a must-have software within you App-V Toolbox. It has a ton of amazing feature, like:

• Modification of Publishing Informatione (Shortcut, File Type Assiociations, OS Values)
• Modification of Package Content (File System, Virtual Registry, Services)
• Modification of Execution Conditions (Scripts, RunAs, Local Dependencies Check)
• What-If Analysis of Virtual Applications, including DSC relations and User Configurations
• Analyisis and Modifuication of User Settings files (PKG-Files)

 There are lots of more cool feature in there, check it out!

http://www.flexerasoftware.com/products/adminstudio-virtualization-pack.htm

Flexera's Admin Studio is one of the most complete MSI packaging solutions on the market. The "Virtualization Pack" adds support for automated and extended creation of App-V packages within the well-defined packaging process.

http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=6655

MS' DSC tool allows you to create Dynamic Suite Composition relations between App-V Packages

After selecting the Primary Package, you can easily add Component Packages to it. Also, it updates the "Publishing MSI"

http://www.tmurgent.com/OSD_Illustrated.aspx

OSD illustrated is a comprehensive description of the XML attributes, parameters and data that make up an OSD file. This sample OSD file demonstrates the structure and capabilities of an OSD file including detailes about attribute's usage.

This is the best OSD reference available!

http://www.klawun.com/appVTools.html

OSD File Anpassen allows to batch add, remove or edit  the OS VALUE attributes in all OSD files of a given subfolder.

While the web site is in German, the tool itself is in English. I wrote areview/description at http://kirxblog.wordpress.com/2010/07/22/freeware-tool-to-control-app-vs-os-values-within-osd-files/ 

http://www.intercept-it.com/AppPlus/Community/CommunityTools/BatchFreeEdition/BatchHighlights.aspx

Batch+ allows to batch add x64 OS VALUE attributes in all OSD files of one or more given subfolders.

http://www.loginconsultants.com/index.php?option=com_docman&task=doc_details&gid=121&Itemid=149

Bring your own app allows users to "install" their own applicationsd without actually installing it. ByoA uses Remote Sequencer to convert an installer into an App-V Package. The users specifies the installer, clicks through the (remote) installation wizard and (sliently) receives an App-V application - without ever seeing the Sequencer User Interface.

See

http://www.intercept-it.com/AppPlus/Products/OSD/Highlights.aspx  

OSD+ is aimed to be a comprehensive OSD Editor (including DSC creation).

Optically, it reminds at Login Consultant's OSD Editor. It is in BETA since March 2010 now, so In don't know if there is any progress with it.

Rating will be available after it has been released.

http://www.add3.co.uk/content/downloads

DSC Management Utility is aimed to create, delete and view/analyze DSC realtionships between Virtual Packages.

The BETA version was released around July 2011.

Rating will be available after it has been released.

http://www.infopulse.com.ua/eng/Solutions/App-V-Generator/

App-V Generator is like "Sequencing without the Sequencer". It is a Pre-/Post Installation Analyzer Tool that allows to monitor installations wqithout using the actual App-V Sequencer Software. beyond the Monitoring, it allows to "generalize" packages for x86/x64 support, prepare a set of pre defined OSD scripts, run wihtout installation and others.

The BETA version has been released around June 2011.

Rating will be available after it has been released.

http://www.appvirtguru.com/viewtopic.php?f=2&t=4045&hilit=powershell&sid=a7d4353bb97303bddd41b2d260aedc69

This Powershell Script updates/modifies the CODEBASE HREF path in the OSD and SPRJ files underneath a given folder recursively, which is esp. usefull when you move from one deployment scenario to another one

http://kirxblog.wordpress.com/2012/01/26/bulk-update-app-v-packages-with-a-new-sequencer/

This Powershell Script loads all App-V packages within a iven folder recursively in the Sequencer and saves them in the current format. It also creates Publishing MSIs and may compress the packages