Captive Runtime - Check for Updated DLLs?

Hi,

I work in an environment where users do not have local admin rights on their workstations. I have read the following useful article, and plan to use that for development:

http://www.adobe.com/devnet/air/articles/customize-setup-for-AIR-app-with-captive-runtime.html

However, as the article points out, users will not be alerted in the case of AIR runtime updates. My question: is there an alternative? Is it possible to check when AIR dll files are updated programatically? What is recommended?

Thanks,