I already tried every possible solution described in Stackoverflow.com, but I can\'t make an Application run as Administrator or prompt for Administrator privileges.
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You specified "runas" verb in ProcessStartInfo. "Runas" is show as "Run as administrator". It is available for administrator accounts. For common user profile, only "runasuser" available, shell will open a login dialog to input administrator account name and password.
You can check verbs of .exe file in HKEY_CLASSES_ROOT\exefile\shell