If nothing else, may I recommend an extremely simple fix? Currently the following section is added to the file: # BEGIN hosts added by Pulse 132.188.0.254   secure.mycompany.com # END hosts added by Pulse Just add one more line: # WARNING: Any changes made to this file while Pulse is connected will be reverted Of course, if you think that reading that will discourage users of your product, you might just want to fix the bug : ) ... View more