The XAML editor would not show up if the user did not have admin access – Most dev’s and testers have full admin rights on theirs dev boxes so this would not have been caught unless the automation in the lab specifically ran on a user account with restricted access. Not too much drama involved here since this was caught in the lab. The code was calling File.Open() which opens a file in Read Write mode by default when it should have been calling File.OpenRead(). Just goes to show how something so basic can go unnoticed if you miss a parameter in your Pairwise matrix :).
— Jeetendra Kukreja
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