If you want to update the Adobe AIR runtime manually you have to disable the  auto-update capability. Using the AIR SettingsManager you can disable it.
AIR SettingsManager is a small application that use a toggle button to Enable or Disable auto-updates as desired.

Download AIR SettingsManager application.

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Marco Casario is one of the most dynamic developers in the Adobe (formerly Macromedia) world. Flex and FlashLite certified Instructor, Flash and Dreamweaver certified, he intensively collaborates with Adobe Italy as a speaker and promoter of several events and roadshows. Marco has recently founded Comtaste S.r.l., a company dedicated to explore new frontiers in the Web 2.0 field, where the themes of accessibility and usability have added further importance to the PDF format and the relevant Acrobat application tools.

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