"The upgrade patch cannot be installed by the windows installer service because the program to be upgraded may be missing, or the upgrade patch may update a different version of the program. Verify that the program to be upgraded exists on your computer and that you have the correct upgrade patch."
-> Win7 Enterprise 64- bits
-> Recap 2.2.0.25 is up and running.
-> AutodeskReCap_2.2.0.25_to_2.2.1.1_x64.msp is located in C:\Autodesk
-> Same error when msp file is doubleclicked as normal user or with administrative accounts
-> Windows Installer Service is up and running
The Autodesk Uninstall tool lists Autodesk Recap 360 being installed.
The Autodesk Application Manager does not (yet) lists an update for Recap.