System.AddIn, AddInStore.Rebuild causes UnauthorizedAccessException

my application is loading addins dynamically and when i add a new module i need to Rebuild the Pipeline segments cache, but the app doesn't开发者_如何学C have write permissions in the program folder and causes a UnauthorizedAccessException. i don't want to copy the addins in a temporary directory or the users application directory.

is there a way to find/activate new added addins without rebuilding the pipeline segments cache ?

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Im not sure, but maybe with it will works AddInStore.Update