I'm using a Custom Action (using VFP) after the 'setup progress dialog' to set up Virtual directories, apply security to the installed folders, and launch the browser. Also, on the uninstall, to remove the virtual directories that were created...

>Yes the upgrade feature sounds handy. How are you using Custom Actions?
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>Mon
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>>The big improvements in the $250 version of ISE are the ability to run Custom Actions from any point (not just the end of the install) and better support for updating software...